Isotopic ages of rocks in the northern Front Range, Colorado

Online link http://pubs.usgs.gov/of/2006/1051/
Description Maps, tables, and GIS data for isotopic ages determined in the northern part of the study area.
Originators Wilson, Anna B. and Bryant, Bruce
Publication U.S. Geological Survey Open-File Report 2006-1051
Reduced-size image of the entire map sheet showing radiometric ages and major rock bodies
Reduced-size image of the entire map sheet showing radiometric ages and major rock bodies