Glen Canyon Dam - The second largest dam in the US, only 16 feet shorter than Hoover Dam, is the reason why the Colorado River is no longer “colorado” (red), the dam filters out the natural, red sediment in the water. Projects are underway to allow the dam to more naturally mimic its ancient flow.

Glen Canyon Dam –
The second largest dam in the US, only 16 feet shorter than Hoover Dam, is the reason why the Colorado River is no longer “colorado” (red), the dam filters out the natural, red sediment in the water. Projects are underway to allow the dam to more naturally mimic its ancient flow.