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<br /> <br />Prepared in cooperation with the Purgatoire River Water Conservancy District, <br />Colorado Water Conservation Board, and U.S. Bureau of Reclamation <br /> <br />Losses and Gains for Eight Unlined Canals Along <br />the Purgatoire River near Trinidad, Colorado, 2000-2004 <br /> <br />--. <br /> <br />, <br /> <br />-~' ...-' ~ ,- <br />.~~ .j <br /> <br />.. <br /> <br />Scientific Investigations Report 2006-5164 <br /> <br />u.s. Department of the Interior <br />U.S. Geological Survey <br />