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Manuscripts
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M020
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Western Slope water projects reports. 1 box.
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M022
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Colorado River Basin Pilot Project records. 5 boxes. Weather records (temperature, precipitation) compiled by Western Scientific Services, Fort Collins, CO, 1969–1975.
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M032
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Jim Dyer collection. Records from Jim Dyer's personal and political life, including Colorado state legislature. Index includes water-related records.
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M091
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Colorado Water Conservation Board publications. 2 document cases and 1 records box. Reports, publicity, and publications, 1950–1969.
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M092
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Animas-La Plata collection inventory. Records from several sources regarding this federal water development project near Durango, CO. Includes significant materials from project opponents, such as 11 folders of public responses to environmental impact study reports, newspaper clippings, and project legislation. Includes materials on related Dolores River Project.
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M119
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Snow survey and irrigation water forecast records. 4 files; 1940–1949. Covers forecasts for Colorado River Drainage, Gila and Salt River Drainages (AZ), Rio Grande Drainage, and the Missouri–Arkansas Drainage.
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M154
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San Luis Valley water resources collection. 1/2 document case; 1988–1991. Printed materials on American Water Development, Inc. and San Luis Valley water resources.
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M161
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Southwestern Water Conservation District records. 8 records boxes and 2 document cases; bulk 1930–1980. Minutes, correspondence, reports, clippings, maps, legal documents, and records on water issues in the Four Corners, especially the Rainbow Bridge National Monument and Animas-La Plata project.
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M201
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Montezuma Valley Water Supply Company (CO) records. 2 document cases; 1886–1889 (bulk 1887–1888). Bills and receipts, cancelled checks, financial documents, legal evidence, payrolls, stock certificates, vouchers.
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M247
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H.H. Ditch Company records.
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Maps
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C001-001
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Animas Ditch and irrigation in Colorado map.
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C004
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Hayden Survey maps - Colorado and adjacent territory, mid-1870s. Two series of maps: (1) four sheets each covering the whole State of Colorado; (2) twelve sheets presenting the results of the field work of 1873–76, covering Colorado and adjacent portions of Utah, Arizona, and New Mexico.
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C007
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Southwest U.S. Geological Survey (USGS) maps collection. 1889–1990s (bulk 1947–1987). More than 2,500 USGS topographic maps of the Southwest, especially the Four Corners states.
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Microforms
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I011
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H.H., Carracas, Animas, and Ignacio Mesa Ditch companies. Microfilmed records of irrigation disputes of the H.H., Carracas, Animas, and Ignacio Mesa Ditch companies, circa 1905–1911. Located at the end of roll 4.
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I052 & M103
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Pine River Irrigation District (La Plata County, CO) records. 10 document cases and 3 rolls of microfilm. Includes annual reports, operations reports, and statistics related to the construction and operation of Vallecito Reservoir (Bayfield, CO) and irrigation in La Plata County and vicinity.
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I054
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State water resources reports. Arizona State Water Commissioner's annual reports #s 1–11 (1921–1940, 1 roll) and New Mexico Engineering Department biennial reports #s 1–14 (1913–1932, 2 rolls).
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I095
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Southwest water resources records. Includes reports such as Sediment Discharge in the Colorado River near De Beque, Colorado(Butler, 1986, 1 fiche) and Adequacy of NASQAN Data...San Juan River Drainage Basin Upstream from Shiprock, NM (Goetz, 1987, 2 fiche).
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Audio
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U002
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Vallecito Dam Oral History Project. 10 oral history interviews.
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