Colorado River from headwaters to the delta

LAES VEGAS, NAVADA - JUNE 25: Las Vegas Valley Water District Water Waste Investigator Devyn Choltko puts a water waste violation into the computer system outside a home in North Las Vegas, Nevada, on June 25, 2024. That early morning, Choltko looks for water being wasted during irrigation times outside residential homes. She said most of the time she leaves a warning flag if she finds something wrong for residents to fix, but if the problem is not fixed and Water Waste Investigators record the violation again, it will most likely result in a fine for the property owner. (Photo by RJ Sangosti/MediaNews Group/The Denver Post via Getty Images)