Peneplains of the Front Range and Rocky Mountain National Park, Colorado (Classic Reprint) PDF Download

Author: Willis T. Lee
Publisher: Forgotten Books
ISBN: 9780656019359
Category : Science
Languages : en
Pages : 188

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Book Description
Excerpt from Peneplains of the Front Range and Rocky Mountain National Park, Colorado Later Davis3 accepted Ball's description and applied to the high lands the term a two-cycle mountain mass. This term and other expressions in his paper indicate that Davis believes that only two main cycles of erosion are represented in the Rocky Mountains in Colorado - an older one resulting in the formation of a peneplain and a younger one during which the canyons and cirques were excavated. Hence the remnants of the highland plain found at many places in these mountains are referred to as parts of the peneplain. A possible third cycle. The dissected plateau near Pikes Peak which Cross described as practically the same as the floor of South Park was recognized by Richardson 4 in the Castle Rock quadrangle and by Finlay 5 in the Colorado Springs quadrangle. This plateau lies at altitudes between and feet and is extensively developed in the Front Range in Colorado. From localities at some distance from the mountains this plain appears to be an almost horizontal shelf that extends along the mountain front as far as the eye can reach. The area in which it is best developed and best preserved extends from Denver south ward to Pikes Peak. In areas farther north, such as the moun tains west of Golden, it is not so readily recognized, but it seems to be represented by surfaces much lower than the highland plain described by Ball as lying above feet. Remnants of the lower plain may be recognized from some commanding eminence, such as Mount Lookout, near Golden, Colo., whose summit appears to be a part of the lower peneplain. This plain has become known somewhat widely as the Rocky Mountain peneplain, possibly because it is the most extensive land form in the Front Range. From Mount Lookout may be seen at nearly the same level numerous flat tops, benches, and smooth-floored reentrants (see B]. I), which are rem nants of the Rocky Mountain peneplain. But the best-known view of this peneplain is that which may be had from the side of Pikes Peak at an altitude of about feet. From this point the oh server looks to the north and west over the tops of the mountain ridges as over a level plain. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.