No matter where you look at Lake Shasta you can see the dramatic “bathtub ring” – bright orange soil contrasting with the blue water and the green tree line. It’s a visual reminder of the severity of California’s drought, and one not seen on a day-to-day basis in places like the Bay Area. But for those who work and live at Lake Shasta, it serves as a daily warning. … The lake was last completely full in 2019. The all-time low point for Lake Shasta was in 1977 when the lake was 230-feet below its maximum level. The very next year, after a very wet winter, it was nearly full.