RS-27 Coal Resources of the Colorado Springs (1/2° x 1°) Quadrangle RS-27 Coal Resources of the Colorado Springs (1/2° x 1°) Quadrangle, Colorado
EG-07 Potentially Swelling Soil and Rock in the Front Range Urban Corridor EG-07 Potentially Swelling Soil and Rock in the Front Range Urban Corridor, Colorado
SP-05B Atlas of Sand SP-05B Atlas of Sand, Gravel, and Quarry Aggregate Resources, Colorado Front Range Counties
B-20 Preliminary Notes on the Revision of the Geological Map of Eastern Colorado B-20 Preliminary Notes on the Revision of the Geological Map of Eastern Colorado
B-19 The Cretaceous Formations of the Northeastern Colorado Plains and the Foothills Formations of North-Central Colorado B-19 The Cretaceous Formations of the Northeastern Colorado Plains and the Foothills Formations of North-Central Colorado