Labels:text | screenshot | sign OCR: 28 USGS CD science for a changing world National Coal Resource Assessment Geologic Assessment of Coal in the Colorado Plateau: Arizona, Colorado, New Mexico, and Utah Edited by M.A. Kirschbaum, L.N.R. Roberts, and L.R.H. Biewick Professional Paper 1625-B Discs 1 and 2 Version 1.0 2000 U.S. Department of the Interior Colorado U.S. Geological Survey Plateau
