A Great Fall 
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and not always swift. But the moment a break occurs the 
turbulence and commotion are instantly very great. The 
summer is the wet season here, and to add to our troubles 
we were treated to frequent rains. The next day toward 
Granite FallSj Grand Canyon. 
Photograph by J. K. Hillers, U. S. Colo. Riv. Exp. 
noon, as we were sailing along between the black walls, on 
a rather sluggish current, a deep-toned roar was borne up 
to our ears. Nothing could be seen of the cause of it, but a 
complete disappearance of the river from our sight warned us 
to make a landing as soon as possible. Some broken rocks 
