ABSTRACT
The analyses presented in the paper by Thomas Maddock III and N. C. Matalas describe possible direct effects on the flow and quality of the Yampa River of mining and conversion of coal, based upon two assumed development alternatives, each with two levels of environmental controls. The purpose of this discussion is to supplement the material contained in the Maddock-Matalas paper with a brief overview of several recent assessment studies of the Yampa River Basin. These assessments and studies were supported and undertaken by the U.S. Geological Survey’s Colorado district office in Denver by a project known as the Yampa River Basin Assessment (Steele and coauthors, 1976a; 1976b).
