Header link June 22, 2020

LinkedIn

  • Read more
Header link September 15, 2014

Cart

  • Read more
Header link November 3, 2015

Donate Now

  • Read more
Header link May 15, 2014

Twitter

  • Read more
Header link May 15, 2014

Facebook

  • Read more
Instagram
Header link May 15, 2014

Instagram

  • Read more
Header link May 15, 2014

Contact Us

  • Read more
More options
Water Education Foundation
Home

Water Education Foundation

Everything about California water that matters
  • Water Academy
    • Agriculture
      • Agricultural Conservation
      • Agricultural Drainage
    • Background Information
      • Legislation — California and Federal
      • Regulations — California and Federal
      • Water History
      • Water Rights
    • Bay-Delta
      • Bay Delta
      • Bay Delta Conservation Plan
      • Delta Issues
      • Delta Smelt
      • Sacramento San Joaquin Delta
      • San Francisco Bay
      • Suisun Marsh
    • Dams, Reservoirs and Water Projects
      • California Aqueduct
      • Central Valley Project
      • Folsom Dam
      • Friant Dam
      • Hetch Hetchy
      • Hoover Dam
      • Infrastructure
      • Lake Mead
      • Lake Powell
      • Oroville Dam
      • San Luis Dam
      • Shasta Dam
      • State Water Project
    • Environmental Issues
      • Anadromous Fish Restoration
      • Ecosystem
      • Endangered Species Act
      • Invasive species
      • Lake Tahoe
      • Mono Lake
      • Public Trust Doctrine
      • Salmon
      • San Joaquin River Restoration
      • Watershed
      • Wetlands
    • Leaders and Experts
    • Regions
      • Central Coast
      • Central Valley
      • Mexico
      • Nevada
      • North Coast
      • Pyramid Lake
      • Sacramento Valley
      • Salton Sea
      • San Joaquin Valley
      • Sierra Nevada
      • Southern California
      • Tulare Lake Basin
    • Rivers
      • Carson River
      • Colorado River
      • Klamath River
      • New River
      • North Coast Rivers
      • Russian River
      • Sacramento River
      • Truckee River
      • San Joaquin River
    • Water Issues
      • Climate Change
      • Coronavirus
      • Drought
      • Earthquakes
      • Energy and Water
      • Floods
      • Fracking
      • Growth
      • Hydropower
      • Levees
      • Tribal Water Issues
      • Water Conservation
      • Water Equity
    • Water Quality
      • Drinking Water
      • Nitrate contamination
      • Pollution
      • Stormwater
      • Wastewater
      • Water Quality
    • Water Supply and Management
      • Acre Foot
      • Aquifers
      • California Water Plan
      • Conjunctive Use
      • Desalination
      • Grey water
      • Groundwater
      • Integrated Regional Water Management
      • Recreation
      • Surface Water
      • Water Marketing and Banking
      • Water Rates
      • Water Recycling
      • Water Supply
      • Water Transfers
  • Tours & Events
    • Water Tours
      • 2023 Tour Sponsors
    • Events
    • Event Calendar
    • Past Tours & Events
      • Anne J. Schneider Fund Lecture Series
  • Specialized Programs
    • Water Leaders
      • Class Rosters
      • Yearly Class Reports
      • Your Alumni Network
      • Alumni Profiles
    • Project WET
      • Workshops
      • Special Workshops & Events
      • Supplementary Materials
      • California Content Standard Correlations
      • Facilitator's Trainings
      • Foundation School Programs
        • Elementary Programs
        • Secondary Programs
      • Water Kids
      • California Project WET Gazette
      • Gazette Archives
    • Colorado River Project
    • GRA Scholastic Fund Program
  • Maps & Guides
    • Maps & Posters
    • Layperson's Guides
    • Map & Guide Bundles
    • Books
    • Colorado River Materials
    • California Runoff Rundown
    • Other Publications
    • Water Awareness Materials
    • Downloadable Publications
    • Videos and DVDs
      • Video Clips
    • School Age Publications
    • Stickers
    • Free Programs and Publications
  • Newsroom
    • Western Water News
    • Aquafornia
      • About Aquafornia
    • Information Desk
    • Western Water Magazine Archive
      • Full Print Edition
      • Print Edition Excerpts
    • River Report Archive
  • Aquapedia
    • Alphabetical List of Subjects
      • A
      • B
      • C
      • D
      • E
      • F
      • G
      • H
      • I
      • J
      • K
      • L
      • M
      • N
      • O
      • P
      • Q
      • R
      • S
      • T
      • U
      • V
      • W
      • X
      • Y
      • Z
    • Historical Water People
    • Where Does My Water Come From?
      • Northern California
      • Sacramento
      • North Bay
      • South Bay
      • Central Valley
      • Los Angeles
      • Inland Empire
      • San Diego
      • All California Water Sources
    • Timelines
    • Videos
    • Image Gallery
    • Water Directory
      • Federal Agencies
      • State Agencies in California
      • Environmental Organizations
      • Other California Organizations
      • State and Federal Legislative Committees
      • Water Associations and Groups
      • Western States Water Agencies and Districts
    • Online Resources
    • Useful Acronyms
    • About Aquapedia
  • About
    • About Us
      • Board of Directors
      • Staff Biographies
      • Job Openings
    • Announcements
    • Support Our Mission
      • Become a Member
      • Donate in Honor/Memory
      • Donate to Aquapedia or Aquafornia
      • Shop Amazon
      • Planned Giving
    • Contact Us
Maps & Posters May 20, 2014 Colorado River Bundle

Colorado River Basin Map
Redesigned in 2017

Redesigned in 2017, this beautiful map depicts the seven Western states that share the Colorado River with Mexico. The Colorado River supplies water to nearly 40 million people in Arizona, California, Colorado, Nevada, New Mexico, Utah, Wyoming and the country of Mexico. Text on this beautiful, 24×36-inch map, which is suitable for framing, explains the river’s apportionment, history and the need to adapt its management for urban growth and expected climate change impacts.

The map features rivers, dams, water projects, major cities, Indian reservations, irrigated areas, basin boundaries, and national parks and monuments. The Colorado River Basin Map is complemented by the Layperson’s Guide to the Colorado River, which describes the history of the river, division of its water and current issues. You can get a package discount on the map and guide when you buy the Colorado River bundle. 

To order 10 or more maps at a discounted fee, contact the Foundation at 916-444-6240 for more information.

  • Print-friendly

Referring Pages

Western Water December 9, 2022 Nick Cahill Colorado River Basin Map WESTERN WATER-As Colorado River Flows Drop and Tensions Rise, Water Interests Struggle to Find Solutions That All Can Accept By Nick Cahill

As Colorado River Flows Drop and Tensions Rise, Water Interests Struggle to Find Solutions That All Can Accept
WESTERN WATER IN-DEPTH: Chorus of experts warn climate change has rendered old assumptions outdated about what the Colorado River can provide, leaving painful water cuts as the only way forward

Photo shows Hoover Dam’s intake towers protruding from the surface of Lake Mead near Las Vegas, where water levels have dropped to record lows amid a 22-year drought. When the Colorado River Compact was signed 100 years ago, the negotiators for seven Western states bet that the river they were dividing would have ample water to meet everyone’s needs – even those not seated around the table.

A century later, it’s clear the water they bet on is not there. More than two decades of drought, lake evaporation and overuse of water have nearly drained the river’s two anchor reservoirs, Lake Powell on the Arizona-Utah border and Lake Mead near Las Vegas. Climate change is rendering the basin drier, shrinking spring runoff that’s vital for river flows, farms, tribes and cities across the basin – and essential for refilling reservoirs.

The states that endorsed the Colorado River Compact in 1922 – and the tribes and nation of Mexico that were excluded from the table – are now straining to find, and perhaps more importantly accept, solutions on a river that may offer just half of the water that the Compact assumed would be available. And not only are solutions not coming easily, the relationships essential for compromise are getting more frayed.

  • Read more
Western Water July 7, 2022 Nick Cahill Colorado River Basin Map WESTERN WATER-A Colorado River Tribal Leader Seeks A Voice In the River's Future--And Freedom to Profit From Its Surplus Water By Nick Cahill

A Colorado River Tribal Leader Seeks A Voice In the River’s Future–And Freedom to Profit From Its Water
WESTERN WATER Q&A: CRIT Chair Amelia Flores Says Allowing Tribe to Lease Or Store Water Off Reservation Could Aid Broader Colorado River Drought Response and Fund Irrigation Repairs

Amelia Flores, chairwoman of the Colorado River Indian Tribes.As water interests in the Colorado River Basin prepare to negotiate a new set of operating guidelines for the drought-stressed river, Amelia Flores wants her Colorado River Indian Tribes (CRIT) to be involved in the discussion. And she wants CRIT seated at the negotiating table with something invaluable to offer on a river facing steep cuts in use: its surplus water.

CRIT, whose reservation lands in California and Arizona are bisected by the Colorado River, has some of the most senior water rights on the river. But a federal law enacted in the late 1700s, decades before any southwestern state was established, prevents most tribes from sending any of its water off its reservation. The restrictions mean CRIT, which holds the rights to nearly a quarter of the entire state of Arizona’s yearly allotment of river water, is missing out on financial gain and the chance to help its river partners.

  • Read more
Western Water April 29, 2022 Nick Cahill Colorado River Basin Map Layperson's Guide to Water Recycling WESTERN WATER-As Drought Shrinks the Colorado River, A SoCal Giant Seeks Help from River Partners to Fortify its Local Supply By Nick Cahill

As Drought Shrinks the Colorado River, A SoCal Giant Seeks Help from River Partners to Fortify its Local Supply
WESTERN WATER NOTEBOOK: Metropolitan Water District's wastewater recycling project draws support from Arizona and Nevada, which hope to gain a share of Metropolitan's river supply

Metropolitan Water District's advanced water treatment demonstration plant in Carson. Momentum is building for a unique interstate deal that aims to transform wastewater from Southern California homes and business into relief for the stressed Colorado River. The collaborative effort to add resiliency to a river suffering from overuse, drought and climate change is being shaped across state lines by some of the West’s largest water agencies.  

  • Read more
Western Water January 14, 2022 Douglas E. Beeman Colorado River Basin Map By Douglas E. Beeman

As the Colorado River Shrinks, Can the Basin Find an Equitable Solution in Sharing the River’s Waters?
WESTERN WATER IN-DEPTH: Drought and climate change are raising concerns that a century-old Compact that divided the river’s waters could force unwelcome cuts in use for the upper watershed

Glen Canyon Dam and Lake Powell, a key Colorado River reservoir that has seen its water level plummet after two decades of drought. Climate scientist Brad Udall calls himself the skunk in the room when it comes to the Colorado River. Armed with a deck of PowerPoint slides and charts that highlight the Colorado River’s worsening math, the Colorado State University scientist offers a grim assessment of the river’s future: Runoff from the river’s headwaters is declining, less water is flowing into Lake Powell – the key reservoir near the Arizona-Utah border – and at the same time, more water is being released from the reservoir than it can sustainably provide.

  • Read more
Western Water December 10, 2021 Douglas E. Beeman Colorado River Basin Map WESTERN WATER-A Colorado River Veteran Takes on Top Water & Science Post at Interior Department By Douglas E. Beeman

A Colorado River Veteran Takes on the Top Water & Science Post at Interior Department
WESTERN WATER Q&A: Tanya Trujillo brings two decades of experience on Colorado River issues as she takes on the challenges of a river basin stressed by climate change

Tanya Trujillo, Assistant Interior Secretary for Water and Science For more than 20 years, Tanya Trujillo has been immersed in the many challenges of the Colorado River, the drought-stressed lifeline for 40 million people from Denver to Los Angeles and the source of irrigation water for more than 5 million acres of winter lettuce, supermarket melons and other crops.

Trujillo has experience working in both the Upper and Lower Basins of the Colorado River, basins that split the river’s water evenly but are sometimes at odds with each other. She was a lawyer for the state of New Mexico, one of four states in the Upper Colorado River Basin, when key operating guidelines for sharing shortages on the river were negotiated in 2007. She later worked as executive director for the Colorado River Board of California, exposing her to the different perspectives and challenges facing California and the other states in the river’s Lower Basin.

  • Read more
Western Water June 25, 2021 Colorado River Basin Map As Climate Change Turns Up The Heat in Las Vegas, Water Managers Try to Wring New Savings to Stretch Supply By Gary Pitzer

As Climate Change Turns Up The Heat in Las Vegas, Water Managers Try to Wring New Savings to Stretch Supply
WESTERN WATER IN-DEPTH: Rising temperatures are expected to drive up water demand as historic drought in the Colorado River Basin imperils Southern Nevada’s key water source

Las Vegas has reduced its water consumption even as its population has increased. Las Vegas, known for its searing summertime heat and glitzy casino fountains, is projected to get even hotter in the coming years as climate change intensifies. As temperatures rise, possibly as much as 10 degrees by end of the century, according to some models, water demand for the desert community is expected to spike. That is not good news in a fast-growing region that depends largely on a limited supply of water from an already drought-stressed Colorado River.

  • Read more
Western Water November 6, 2020 Colorado River Basin Map By Gary Pitzer

A Colorado River Leader Who Brokered Key Pacts to Aid West’s Vital Water Artery Assesses His Legacy and the River’s Future
WESTERN WATER Q&A: Terry Fulp, regional Reclamation director, urges continued collaboration and cooperation to meet the river's tough water management challenges ahead

Terry FulpManaging water resources in the Colorado River Basin is not for the timid or those unaccustomed to big challenges. Careers are devoted to responding to all the demands put upon the river: water supply, hydropower, recreation and environmental protection.

All of this while the Basin endures a seemingly endless drought and forecasts of increasing dryness in the future.

  • Read more
Aquapedia background September 4, 2020 Colorado River Basin Map Layperson's Guide to the Colorado River Layperson's Guide to the Colorado River Delta

Colorado River Compact

Signing of the Colorado River Compact in 1922.The Colorado River Compact of 1922 divided the river into two basins: The Upper Basin (Colorado, New Mexico, Utah and Wyoming) and the Lower Basin (Arizona, California and Nevada), established the allotment for each basin and provided a framework for management of the river for years to come.

  • Read more
Western Water June 12, 2020 Colorado River Basin Map A Key Player On Colorado River Issues Seeks To Balance Competing Water Demands In The River's Upper Basin Gary Pitzer

A Key Player On Colorado River Issues Seeks To Balance Competing Water Demands In The River’s Upper Basin
WESTERN WATER Q&A: Colorado’s water chief Becky Mitchell, now the state’s point person on the Upper Colorado River Commission, brings decades of water know-how to state, interstate assignments

Becky Mitchell, director of the Colorado Water Conservation Board since 2017 and the state’s representative to the Upper Colorado River Commission.Colorado is home to the headwaters of the Colorado River and the water policy decisions made in the Centennial State reverberate throughout the river’s sprawling basin that stretches south to Mexico. The stakes are huge in a basin that serves 40 million people, and responding to the water needs of the economy, productive agriculture, a robust recreational industry and environmental protection takes expertise, leadership and a steady hand.

  • Read more
Western Water May 15, 2020 Colorado River Basin Map Gary Pitzer

Questions Simmer About Lake Powell’s Future As Drought, Climate Change Point To A Drier Colorado River Basin
WESTERN WATER IN-DEPTH: A key reservoir for Colorado River storage program, Powell faces demands from stakeholders in Upper and Lower Basins with different water needs as runoff is forecast to decline

Persistent drought in the Colorado River Basin combined with the coordinated operations with Lake Mead has left Lake Powell consistently about half-full. Sprawled across a desert expanse along the Utah-Arizona border, Lake Powell’s nearly 100-foot high bathtub ring etched on its sandstone walls belie the challenges of a major Colorado River reservoir at less than half-full. How those challenges play out as demand grows for the river’s water amid a changing climate is fueling simmering questions about Powell’s future.

  • Read more
Western Water December 13, 2019 Colorado River Basin Map Gary Pitzer

Can a Grand Vision Solve the Colorado River’s Challenges? Or Will Incremental Change Offer Best Hope for Success?
WESTERN WATER IN-DEPTH: With talks looming on a new operating agreement for the river, a debate has emerged over the best approach to address its challenges

Photo of Lake Mead and Hoover DamThe Colorado River is arguably one of the hardest working rivers on the planet, supplying water to 40 million people and a large agricultural economy in the West. But it’s under duress from two decades of drought and decisions made about its management will have exceptional ramifications for the future, especially as impacts from climate change are felt.

  • Read more
Western Water September 12, 2019 Layperson's Guide to the Colorado River Colorado River Basin Map Gary Pitzer

Could “Black Swan” Events Spawned by Climate Change Wreak Havoc in the Colorado River Basin?
WESTERN WATER NOTEBOOK: Scientists say a warming planet increases odds of extreme drought and flood; officials say they’re trying to include those possibilities in their plans

Runoff from what some describe as an "epic flood" in 1983 strained the capacity of Glen Canyon Dam to convey water fast enough.  The Colorado River Basin’s 20 years of drought and the dramatic decline in water levels at the river’s key reservoirs have pressed water managers to adapt to challenging conditions. But even more extreme — albeit rare — droughts or floods that could overwhelm water managers may lie ahead in the Basin as the effects of climate change take hold, say a group of scientists. They argue that stakeholders who are preparing to rewrite the operating rules of the river should plan now for how to handle these so-called “black swan” events so they’re not blindsided.

  • Read more
Western Water August 8, 2019 Colorado River Basin Map Gary Pitzer

A Rancher-Led Group Is Boosting the Health of the Colorado River Near Its Headwaters
WESTERN WATER SPOTLIGHT: A Colorado partnership is engaged in a river restoration effort to aid farms and fish habitat that could serve as a model across the West

Strategic placement of rocks promotes a more natural streamflow that benefits ranchers and fish. High in the headwaters of the Colorado River, around the hamlet of Kremmling, Colorado, generations of families have made ranching and farming a way of life, their hay fields and cattle sustained by the river’s flow. But as more water was pulled from the river and sent over the Continental Divide to meet the needs of Denver and other cities on the Front Range, less was left behind to meet the needs of ranchers and fish.

“What used to be a very large river that inundated the land has really become a trickle,” said Mely Whiting, Colorado counsel for Trout Unlimited. “We estimate that 70 percent of the flow on an annual average goes across the Continental Divide and never comes back.”

  • Read more
Western Water May 9, 2019 Layperson's Guide to the Colorado River Colorado River Basin Map Gary Pitzer

With Drought Plan in Place, Colorado River Stakeholders Face Even Tougher Talks Ahead On The River’s Future
WESTERN WATER IN-DEPTH: Talks are about to begin on a potentially sweeping agreement that could reimagine how the Colorado River is managed

Lake Mead, behind Hoover Dam, shows the effects of nearly two decades of drought. Even as stakeholders in the Colorado River Basin celebrate the recent completion of an unprecedented drought plan intended to stave off a crashing Lake Mead, there is little time to rest. An even larger hurdle lies ahead as they prepare to hammer out the next set of rules that could vastly reshape the river’s future.

Set to expire in 2026, the current guidelines for water deliveries and shortage sharing, launched in 2007 amid a multiyear drought, were designed to prevent disputes that could provoke conflict.

  • Read more
Western Water March 14, 2019 Colorado River Basin Map Gary Pitzer

‘Mission-Oriented’ Colorado River Veteran Takes the Helm as the US Commissioner of IBWC
WESTERN WATER Q&A: Jayne Harkins’ duties include collaboration with Mexico on Colorado River supply, water quality issues

Jayne Harkins, the U.S. Commissioner of the International Boundary and Water Commission.For the bulk of her career, Jayne Harkins has devoted her energy to issues associated with the management of the Colorado River, both with the U.S. Bureau of Reclamation and with the Colorado River Commission of Nevada.

Now her career is taking a different direction. Harkins, 58, was appointed by President Trump last August to take the helm of the United States section of the U.S.-Mexico agency that oversees myriad water matters between the two countries as they seek to sustainably manage the supply and water quality of the Colorado River, including its once-thriving Delta in Mexico, and other rivers the two countries share. She is the first woman to be named the U.S. Commissioner of the International Boundary and Water Commission for either the United States or Mexico in the commission’s 129-year history.

  • Read more
Western Water December 20, 2018 Colorado River Basin Map Gary Pitzer

As Colorado River Stakeholders Draft a Drought Plan, the Margin for Error in Managing Water Supplies Narrows
WESTERN WATER IN-DEPTH: Climate report and science studies point toward a drier Basin with less runoff and a need to re-evaluate water management

This aerial view of Hoover Dam shows how far the level of Lake Mead has fallen due to ongoing drought conditions.As stakeholders labor to nail down effective and durable drought contingency plans for the Colorado River Basin, they face a stark reality: Scientific research is increasingly pointing to even drier, more challenging times ahead.

The latest sobering assessment landed the day after Thanksgiving, when U.S. Global Change Research Program’s Fourth National Climate Assessment concluded that Earth’s climate is changing rapidly compared to the pace of natural variations that have occurred throughout its history, with greenhouse gas emissions largely the cause.

  • Read more
Western Water November 2, 2018 Colorado River Basin Map Gary Pitzer

As Shortages Loom in the Colorado River Basin, Indian Tribes Seek to Secure Their Water Rights
WESTERN WATER IN-DEPTH: A study of tribal water rights could shed light on future Indian water use

Aerial view of the lower Colorado RiverAs the Colorado River Basin becomes drier and shortage conditions loom, one great variable remains: How much of the river’s water belongs to Native American tribes?

Native Americans already use water from the Colorado River and its tributaries for a variety of purposes, including leasing it to non-Indian users. But some tribes aren’t using their full federal Indian reserved water right and others have water rights claims that have yet to be resolved. Combined, tribes have rights to more water than some states in the Colorado River Basin.

  • Read more
Western Water September 21, 2018 Colorado River Basin Map California Water Map Gary Pitzer

Despite Risk of Unprecedented Shortage on the Colorado River, Reclamation Commissioner Sees Room for Optimism
WESTERN WATER NOTEBOOK: Commissioner Brenda Burman, in address at Foundation’s Water Summit, also highlights Shasta Dam plan

Bureau of Reclamation Commissioner Brenda BurmanThe Colorado River Basin is more than likely headed to unprecedented shortage in 2020 that could force supply cuts to some states, but work is “furiously” underway to reduce the risk and avert a crisis, Bureau of Reclamation Commissioner Brenda Burman told an audience of California water industry people.

During a keynote address at the Water Education Foundation’s Sept. 20 Water Summit in Sacramento, Burman said there is opportunity for Colorado River Basin states to control their destiny, but acknowledged that in water, there are no guarantees that agreement can be reached.

  • Read more
Western Water September 7, 2018 Colorado River Basin Map Layperson's Guide to the Colorado River Gary Pitzer

Can Steadier Releases from Glen Canyon Dam Make Colorado River ‘Buggy’ Enough for Fish and Wildlife?
WESTERN WATER Q&A: Ted Kennedy, U.S. Geological Survey aquatic scientist

U.S. Geological Survey research ecologist Ted Kennedy collects aquatic invertebrates in the Colorado River below Glen Canyon Dam.Water means life for all the Grand Canyon’s inhabitants, including the many varieties of insects that are a foundation of the ecosystem’s food web. But hydropower operations upstream on the Colorado River at Glen Canyon Dam, in Northern Arizona near the Utah border, disrupt the natural pace of insect reproduction as the river rises and falls, sometimes dramatically. Eggs deposited at the river’s edge are often left high and dry and their loss directly affects available food for endangered fish such as the humpback chub.

  • Read more
Western Water August 10, 2018 Colorado River Basin Map Layperson's Guide to the Colorado River Gary Pitzer

New Leader Takes Over as the Upper Colorado River Commission Grapples With Less Water and a Drier Climate
WESTERN WATER Q&A: Amy Haas, executive director, Upper Colorado River Commission

Amy Haas, executive director, Upper Colorado River CommissionAmy Haas recently became the first non-engineer and the first woman to serve as executive director of the Upper Colorado River Commission in its 70-year history, putting her smack in the center of a host of daunting challenges facing the Upper Colorado River Basin.

Yet those challenges will be quite familiar to Haas, an attorney who for the past year has served as deputy director and general counsel of the commission. (She replaced longtime Executive Director Don Ostler). She has a long history of working within interstate Colorado River governance, including representing New Mexico as its Upper Colorado River commissioner and playing a central role in the negotiation of the recently signed U.S.-Mexico agreement known as Minute 323.

  • Read more
Western Water June 15, 2018 Jenn Bowles Colorado River Basin Map Layperson's Guide to the Colorado River Jennifer Bowles

Domino Effect: As Arizona Searches For a Unifying Voice, a Drought Plan for the Lower Colorado River Is Stalled
EDITOR'S NOTE: Finding solutions to the Colorado River — or any disputed river —may be the most important role anyone can play

Nowhere is the domino effect in Western water policy played out more than on the Colorado River, and specifically when it involves the Lower Basin states of California, Nevada and Arizona. We are seeing that play out now as the three states strive to forge a Drought Contingency Plan. Yet that plan can’t be finalized until Arizona finds a unifying voice between its major water players, an effort you can read more about in the latest in-depth article of Western Water.

Even then, there are some issues to resolve just within California.

  • Read more
Western Water June 15, 2018 Layperson's Guide to the Colorado River Colorado River Basin Map Gary Pitzer

As Colorado River Levels Drop, Pressure Grows On Arizona To Complete A Plan For Water Shortages
WESTERN WATER IN-DEPTH: A dispute over who speaks for Arizona has stalled work with California, Nevada on Drought Contingency Plan

Hoover Dam and Lake Mead

It’s high-stakes time in Arizona. The state that depends on the Colorado River to help supply its cities and farms — and is first in line to absorb a shortage — is seeking a unified plan for water supply management to join its Lower Basin neighbors, California and Nevada, in a coordinated plan to preserve water levels in Lake Mead before they run too low.

If the lake’s elevation falls below 1,075 feet above sea level, the secretary of the Interior would declare a shortage and Arizona’s deliveries of Colorado River water would be reduced by 320,000 acre-feet. Arizona says that’s enough to serve about 1 million households in one year.

  • Read more
Western Water March 9, 2018 Layperson's Guide to the Colorado River Colorado River Basin Map Gary Pitzer

A Colorado River Raft Trip Offers a Firsthand Lesson in the Power of Nature
ON THE ROAD: Writer Gary Pitzer offers a sense of the Grand Canyon that was first explored by John Wesley Powell

Writer Gary Pitzer at the Grand CanyonMost people see the Grand Canyon from the rim, thousands of feet above where the Colorado River winds through it for almost 300 miles.

But to travel it afloat a raft is to experience the wondrous majesty of the canyon and the river itself while gaining perspective about geology, natural beauty and the passage of time.

Beginning at Lees Ferry, some 30,000 people each year launch downriver on commercial or private trips. Before leaving, they are dutifully briefed by a National Park Service ranger who explains to them about the unique environment that awaits them, how to keep it protected and, most importantly, how to protect themselves.

They also are told about the pair of ravens that will inevitably follow them through the canyon, seizing every opportunity to scrounge food.

  • Read more
Aquapedia background August 25, 2016 Colorado River Basin Map Layperson's Guide to the Colorado River

Colorado River Aqueduct

The Colorado River Aqueduct, built by the Metropolitan Water District  of Southern California, cuts through the California desert.The Colorado River Aqueduct, a 242-mile-long channel completed in 1941 by the Metropolitan Water District of Southern California, carries water from the Colorado River to urban Southern California. The aqueduct is one of three conveyance systems of imported water to Southern California, the other two being the California Aqueduct and the Los Angeles Aqueduct.

  • Read more
Overview May 29, 2014 Colorado River Basin Map Layperson's Guide to the Colorado River

Colorado River Project

Established in 1997, the Foundation’s program dedicated to the lifeline of the Southwest is known as the Colorado River Project. It is focused on educating people about challenges facing the Upper and Lower Colorado River Basins and assisting the many stakeholders in the two basins in reaching common ground. Financial support for the project is provided through a grant from the U.S. Bureau of Reclamation’s Upper and Lower Colorado Regions along with contributions from agencies, companies and individuals.

  • Read more
Publication May 20, 2014 Colorado River Basin Map

Layperson’s Guide to the Colorado River
Updated 2018

Cover page for the Layperson's Guide to the Colorado River .

The Colorado River provides water to 40 million people and 4 million acres of farmland in a region encompassing some 246,000 square miles in the southwestern United States. The 32-page Layperson’s Guide to the Colorado River covers the history of the river’s development; negotiations over division of its water; the items that comprise the Law of the River; and a chronology of significant Colorado River events.

  • Read more
Aquapedia background February 11, 2014 Colorado River Basin Map Layperson's Guide to the Colorado River

Lower Colorado River Multi-Species Conservation Program

The Lower Colorado River Multi-Species Conservation Program aims to balance use of Colorado River water resources with the conservation of native species and their habitat. A key component of the program is the restoration and enhancement of existing riparian and marsh habitat along the lower Colorado River. 

  • Read more
Aquapedia background February 11, 2014 Colorado River Basin Map Layperson's Guide to the Colorado River

Lake Powell and Glen Canyon Dam

Image shows Glen Canyon Dam with Lake Powell in the background.The construction of Glen Canyon Dam in 1964 created Lake Powell. Both are located in north-central Arizona near the Utah border. Lake Powell acts as a holding tank for outflow from the Colorado River Upper Basin States: Colorado, New Mexico, Utah and Wyoming.

The water stored in Lake Powell is used for recreation, power generation and delivering water to the Lower Basin states of California, Arizona, and Nevada. 

  • Read more
Aquapedia background February 11, 2014 Colorado River Basin Map Layperson's Guide to the Colorado River Elwood Mead Colorado River Hoover Dam

Lake Mead

Aerial view of Lake Mead

Lake Mead is the main reservoir formed by Hoover Dam on the border between Southern Nevada and northwestern Arizona.

Created in the 1930s as part of Hoover Dam [see also Elwood Mead], Lake Mead provides water storage in the Lower Basin of the Colorado River. The reservoir is designed to hold 28,945,000 acre-feet of water and at 248 square miles its capacity is the largest in United States.

  • Read more
Aquapedia background January 30, 2014 Colorado River Basin Map Layperson's Guide to the Colorado River Layperson's Guide to the Colorado River Delta

Colorado River

Colorado RiverThe turbulent Colorado River is one of the most heavily regulated and hardest working rivers in the world.

Geography

The Colorado falls some 10,000 feet on its way from the Rocky Mountains to the Gulf of California, helping to sustain a range of habitats and ecosystems as it weaves through mountains and deserts.

  • Read more
  • Colorado River Timeline
Print-friendly

Related Links

Maps & Posters May 20, 2014 Colorado River Bundle
Maps & Posters January 8, 2019

Colorado River Bundle
Special discount price for Colorado River Basin map and Layperson’s Guide to the Colorado River

The Colorado River bundle features our beautiful Colorado River poster-size map and our Colorado River Layperson’s Guide, updated in 2018. This bundle gives you the resources you need to understand the importance of the Colorado River to nearly 40 million people in seven Western states and Mexico.

Regularly priced at $22 for the map and $15 for the guide, this bundle allows you to purchase both of these high-quality products for $32. Add the Layperson’s Guide to the Colorado River Delta for an additional $7.50, using the discount code COLORADODELTA. Please note the map ships separately from the guides.

  • Read more
Back
This item appears in:
  • Topic: Acre Foot
  • Topic: Climate Change
  • Maps & Posters
  • Topic: Colorado River
  • Topic: Drought
  • Topic: Mexico
  • Topic: Water History
  • Topic: Nevada
  • Topic: Energy and Water
  • Colorado River Materials
  • Topic: Hoover Dam
  • Infrastructure
  • Topic: Lake Mead
  • Topic: Hydropower
  • Topic: Lake Powell
  • Topic: Surface Water
  • Topic: Tribal Water Issues
Footer pod May 20, 2014

Water Education Foundation

Copyright © 2023 Water Education Foundation. All rights reserved.

The Water Education Foundation is a nonprofit, tax-exempt, 501(c)3 organization, federal tax ID #942419885.

Privacy Policy

Donor Privacy Policy

  • Read more
Footer pod May 20, 2014

Contact Information

2151 River Plaza Drive, Suite 205
Sacramento CA 95833

Telephone (916) 444-6240

Contact Us via email

  • Read more

Quicklinks

Footer quicklink May 20, 2014

Contact Us

  • Read more
Footer quicklink May 20, 2014

Donate Today

  • Read more
Footer quicklink May 20, 2014

Tours

  • Read more
Footer quicklink May 20, 2014

Newsletter Signup

  • Read more
Footer quicklink May 20, 2014

Foundation News

  • Read more
Footer quicklink May 20, 2014

Calendar

  • Read more

Log in

  • Create new account
  • Request new password

Commands

  • Support portal
  • Log in