Book Description

Excerpt from Operations at River Stations, 1899, Vol. 4: A Report of the Division of Hydrography of the United States Geological Survey This river is the last important tributary of Grand River. It has its source in the La Plata and San Miguel mountains, in which the highest peak, Mount Wilson, attains an elevation of feet. Its course is in a general northwesterly direction. Crossing into Utah it shortly joins Grand River. In the Vicinity of Dolores considerable irrigation is practiced, both from small ditches and from one or two large systems. The main canal of the Montezuma Valley irrigation system diverts water from the left bank of the river a short distance below the gaging station, and after crossing the divide between the Dolores and San J uau drainage irrigates land in the vicinity Of Cortez. A lower lateral of this system serves land to the northwest of Dolores. The gaging station is located. One-half mile above the railroad station at Dolores, Colorado. The gage rod consists of a vertical plank bolted to the abutment of a footbridge on the left side of the river. The bench mark consists of a nail driven into the base of a cottonwood tree 18 feet southwesterly from the gage, and is feet above gage datum. The right bank is low and the left bank high; the water moves with a good velocity; the bed of the stream is composed of small stones and gravel. Dolores River at Rico, Colorado, was measured three times during the year: April 19 the discharge was 168 second feet; September 22, 23 second-feet, and November 22, 16 second-feet. Results of measurements at this station may be found as follows 1896, Eighteenth Annual Report, Part IV, page 263; 1897, Nineteenth Annual Report, Part IV, page 408; 1898, Twentieth Annual Report, Part IV, page 393. The following discharge measurements were made by A. L. Fellows during 1899: April 20, gage height, feet; discharge, 613 second-feet. May 17, gage height, feet; discharge, 963 second-feet. June 22, gage height, feet; discharge, 307 second-feet. November 22, gage height, feet; discharge, 56 second-feet. 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.