All -Old Platte Channel.— Condra. 
363 
crn end. There are three highland areas only one of which 
concerns us much at this time. 
TnM 
Fig. 1. 
The Platte and Its Flood Plain. — The Platte is a broad, 
shallow, and over-loaded river. It is further characterized 
by numerous sand bars and low sandy islands. The floor is 
quite level, little dissected, and imperfectly drained. Over- 
How channels and low sinuous, sandy ridges show where the 
