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Excerpt from Surficial Geology of the Louisville Quadrangle Colorado: A Contribution to General Geology About one-third Of the quadrangle is under irrigation; the rest is about equally divided between dry farming and grazing. Irrigation is necessary for sugar beets, alfalfa, truck crops, and fruits; dry farm ing suffices for raising corn, pinto beans, and grains. Grazing is chiefly restricted to the rocky uplands and dissected slopes. Boggy lowlands and gravelly areas in modern flood plains are used for dairy farming. Initially, irrigation was restricted to lowlands that were supplied with water by small private ditches from river channels nearby, but since about 1870 a system of large canals, dams, and head gates, later linked with large storage reservoirs, has supplied water independent of direct flow from streams. 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.

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