Excerpt from A Guide to the Geology of Rocky Mountain National Park, Colorado So it is with the history of the earth, which we call geology. A great volcanic eruption took place long before the coming of man. We do not need tradition to tell us of the event; we see the crater and the hardened lava flow. Most of us take the world for granted. We do not stop to consider the forces which produced the familiar landscapes nor the series of events which the hills and the rocks record. But for him who observes closely, and carefully pieces together his scattered observations, there gradually unfolds a picture of earth history so vast in its span of time that it staggers imagination. If the information presented in the following pages affords the visitor to Rocky Mountain National Park a brief glimpse of this history, revealing to him the origin of the grand scenery which he admires, it have accomplished its purpose. 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.