Newsweek on MSN18d
Lake Powell Faces Sediment Crisis: '30,000 Dump Truck Loads' per Day
The iconic reservoir faces the risk of becoming a mud lake as 100 million tons of sediment accumulate each year.
PBS2y
John Wesley Powell's First Expedition Down the Colorado River
June 22 -- Mouth of Yampa River ... Hurra! Hurra! Grand River [Colorado River] came upon us or rather we came upon that very suddenly and to me unexpectedly 5 1/2 P.M...here we float in upon ...