Five years of record-breaking drought in the Colorado River basin have drained Lake Powell of more than 60% of its water. Flows on the Colorado are among the lowest in 500 years.
Downriver, Lake Mead, the biggest reservoir in North America and supplier of water to Southern California, Arizona and Las Vegas, is little more than half full. At Mead’s northern end, the foundations of St. Thomas, a little town demolished in the 1930s to make way for the reservoir, have reemerged.
From the Los Angeles Times.