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Map of Las Vegas Valley artesian basin, circa 1940

Date
1938 to 1942
Description
Scale [ca. 1:72,000. 1 in.=approx. 6,000 feet] (W 115°10´--W 115°/N 36°20´--N 36´). Shows wells, springs, boundary between valley fill and bedrock, and ground water district boundaries for Las Vegas Metropolitan Area and North Las Vegas. "Figure 1." Nevada. State Engineer

Image