From the Morgan Sweeney Photograph Collection (PH-00228). Note, the turbid water in lower reaches of the Grad Canyon of the Colorado. The agitated current here was so swift the boat could make on headway.
From the Morgan Sweeney Photograph Collection (PH-00228). Entrance to Emery Falls to the right. The drift marks end of sand waves and swift water on downstream end of castle-like formation.
From the Morgan Sweeney Photograph Collection (PH-00228). Looking upstream about Mile 274. Clear water of lake appears on top of the silt deposit. Sand (or silt) face is higher than it appears in picture.