Search for exactly "Colorado River"

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1. Topographic map of the Boulder Canyon Reservoir site, 1930 		Object thumbnail
2. Map based on reconnaissance of the Zuñi, Little Colorado and Colorado Rivers in 1851 by... 		Object thumbnail
3. Map showing automobile routes to Hoover Dam and vicinity, circa 1934
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4. Map of irrigable areas near Boulder Dam, February 20, 1935 		Object thumbnail
5. Map of Lincoln County, Nevada and Mohave County, Arizona area, 1892 		Object thumbnail
6. Geologic map and sections of area along Colorado River between Lake Mead and Davis Dam,...
 

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