STATE OF COLORADO
John A. Love, Governor
DEPARTMENT OF NATURAL RESOURCES
T. W. Ten Eyck, Executive Director
COLORADO GEOLOGICAL SURVEY
John W. Rold, State Geologist and Director
A. L. Hornbaker, Mineral Deposits Geologist
Richard H. Pearl, Ground Water Geologist
William P. Rogers, Engineering Geologist
Antoinette M. Ray, Secretary