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
MISSION OF THE COLORADO GEOLOGICAL SURVEY
The Colorado Geological Survey was legislatively re-establishedin February 1969 to meet the geologic needs of the citizens,governmental agencies, and mineral industries of Colorado. Thismodern legislation was aimed at applying geologic knowledgetoward the solution of today’s and tomorrow’s problems of anexpanding population, mounting environmental concern, and thegrowing demand for mineral resources.
SPECIFIC LEGISLATIVE CHARGES:
A GUIDE TO THE GEOLOGY OF COLORADO
by John and Halka Chronic
COLORADO GEOLOGICAL SURVEY BULLETIN 32
1972
Available from Colorado Geological Survey
1845 Sherman Street
Denver, Colorado 80203
Price—$2.00
This guidebook was written at the request of the ColoradoGeological Survey to fulfill a long-felt need for a popularaccount of the state’s geology and its relationship to Man.
The authors wish to thank those of their colleagues who haveassisted at various times in the preparation of this book. JohnRold, Colorado State Geologist, and William Weber, of the Universityof Colorado Museum staff, made many helpful suggestionsconcerning the manuscript. John Schooland, vice president of theColorado Historical Society, generously provided several picturesof early mining activities in Colorado. Permission to reproducedrawings and paintings of fossils and reconstructions of pastenvironments was granted by the American Museum of NaturalHistory and the University of Colorado Museum. Drawings, maps,and diagrams are largely the work of Robert Maurer, who alsodesigned the cover and title page.