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Publication March 27, 2017

Layperson’s Guide to the Colorado River Delta
Published 2017

The Colorado River Delta once spanned nearly 2 million acres and stretched from the northern tip of the Gulf of California in Mexico to Southern California’s Salton Sea. Today it’s one-tenth that size, yet still an important estuary, wildlife habitat and farming region even though Colorado River flows rarely reach the sea.

This 24-page guide provides an overview of the history of the Colorado River Delta, its geographic scope, environmental significance, role within the Colorado River Basin, and issues related to its restoration – including the pulse flow in Minute 319 (the supplemental agreement to the 1944 U.S.-Mexican Water Treaty).  

Order in bulk (25 or more copies of the same guide) for a reduced fee. Contact the Foundation, 916-444-6240, for details.

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Referring Pages

Western Water August 27, 2021 Layperson's Guide to the Colorado River Delta Water-Starved Colorado River Delta Gets Another Shot of Life from the River’s Flows By Gary Pitzer

Water-Starved Colorado River Delta Gets Another Shot of Life from the River’s Flows
WESTERN WATER NOTEBOOK: Despite water shortages along the drought-stressed river, experimental flows resume in Mexico to revive trees and provide habitat for birds and wildlife

Water flowing into a Colorado River Delta restoration site in Mexico.Water is flowing once again to the Colorado River’s delta in Mexico, a vast region that was once a natural splendor before the iconic Western river was dammed and diverted at the turn of the last century, essentially turning the delta into a desert.

In 2012, the idea emerged that water could be intentionally sent down the river to inundate the delta floodplain and regenerate native cottonwood and willow trees, even in an overallocated river system. Ultimately, dedicated flows of river water were brokered under cooperative efforts by the U.S. and Mexican governments.

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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.

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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.

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  • Colorado River Timeline

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Publication March 27, 2017
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  • Topic: Colorado River
  • Topic: Mexico
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