ROCKY MOUNTAIN A Guide to the Geology of Rocky Mountain National Park, Colorado

We have come to the end of our study of the geology of Rocky Mountain National Park. We might continue our investigations indefinitely, always finding some new point of interest to attract our attention and to open up new lines of thought. Future work will undoubtedly add much to our knowledge and change some of our conclusions. Let us hope, however, that these changes will not be vital to the main facts of our story and that the reader under the guidance of this booklet, has been led along the right trails in his study of one of the most interesting areas on the American Continent.

In the preparation of this guide to the geology of Rocky Mountain National Park the author has drawn upon the writings listed below. Particularly is he indebted to F. M. Van Tuyl, Ernest E. Wahlstrom, and Ross L. Heaton with whom time was spent in the field. To David H. Canfield, Superintendent of Rocky Mountain National Park, and to H. Raymond Gregg, Park Naturalist, thanks are due for hearty cooperation and assistance.

BLACKWELDER, ELIOT. Origin of the Colorado River: Geol. Soc. Am. Bull., Vol. 45, 1934.

BOOS, MARGARET FULLER. Notes on the Geology of the Rocky Mountain National Park Region. Unpublished manuscript, 1929.

CHAMBERLIN, R. T. Building of the Colorado Rockies: Jour. Geol., Vol. 27, 1919.

HEATON, ROSS L. Ancestral Rockies and Mesozoic and Late Paleozoic Stratigraphy of Rocky Mountain Region: Am. Assoc. Petrol. Geol. Bull., Vol. 17, No. 2, Feb. 1933.

______. Contribution to Jurassic Stratigraphy of Rocky Mountain Region. Am. Assoc. of Petroleum Geologists Bull., Vol. 23, No. 8, August 1939.

LEE, W. T. The Geologic Story of the Rocky Mountain National Park, Colorado. Washington, D. C., Government Printing Office, 1917.

_______. Peneplains of the Front Range and Rocky Mountain National Park, Colorado. Washington, D. C., Government Printing Office, 1922. (U. S. Geol. Survey Bull. 730—A).

QUAM, LOUIS. The Morphology of Landscape of the Estes Park Area, Colorado. Unpublished thesis submitted to the University of Colorado.

SCHUCHERT, CHARLES, and DUNBAR, CARL O. Textbook of Historical Geology. New York, John Wiley & Sons, Inc., 1933.

VAN TUYL, F. M., and COKE, J. M. The Late Tertiary Physiographic History of the High Plains of Colorado and New Mexico. Colorado Scientific Society Proceedings, Vol. XIII, No. 1, 1932.

______ and LOVERING, T. S. Physiographic development of the Front Range: Geol. Soc. America Bull., Vol. 46, No. 9, pp. 1291-1350, 1935.

______. and others, Guide to the Geology of the Golden Area, Colorado. Colorado School of Mines Quarterly, Vol. XXXIII, No. 3, 1938.

WAHLSTROM, ERNEST E. Hydrothermal Deposits in the Specimen Mountain Volcanics, Rocky Mountain National Park, Colorado. Am. Mineralogist, 26: 551-561, 1941.