insider.si.edu

Geologic history of the Colorado Front Range / edited by Dudley W. Bolyard and Stephen A. Sonnenberg

"A symposium/roadlog guidebook and its associated field trip, ... [held] in conjunction with the 1997 Rocky Mountain Section of the American Association of Petroleum Geologists annual meeting in ...
insider.si.edu

Geologic history of South Park and geology of the Antero Reservoir quadrangle, Colorado by Richard H. De Voto

Geologic setting -- Rocks of the Antero Reservoir quadrangle. Precambrian ; Paleozoic (Cambrian ; Ordovician ; Devonian ; Mississippian ; Pennsylvanian-Permian ...
The Aspen Times

Willoughby: Ferdinand Hayden’s influence on the history of Colorado and Aspen

You may have read what I have written before about USGS scientist-trailblazer Ferdinand Hayden or seen his Geologic Atlas of Colorado from 1879. His early history and influence of Colorado in the ...