A geomorphic history based on topographic map evidence Abstract: This Niobrara River drainage basin landform origins overview essay provides highlights from more detailed essays which illustrate and interpret detailed topographic map evidence. The detailed essays can be found under Niobrara River on this website’s sidebar category list. All interpretations in this overview essay and the […]
Tag archives for Nebraska
Abstract: The Platte River-Medicine Creek drainage divide area in Lincoln and Frontier Counties, Nebraska contains evidence of massive south-oriented flood flow that occurred prior to Platte River valley headward erosion. Flood waters were probably derived from a rapidly melting North American ice sheet and initially flowed across a topographic surface at least as high as […]
Missouri River drainage basin landform origins research project 