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You've searched: Early Washington Maps

  • Description: pumped
(2 results)



Display: 20

    • Map of main canal, pumping plan (1923)

    • Irrigation--Washington (State)--Columbia River Valley--Maps; Columbia Basin Project (U.S.)
    • 1 map ; negative : 21 x 32 cm. This was a preliminary map showing one particular plan for the irrigation of the Columbia Basin. As noted in the title, this map represented the pumping plan, whereby a dam would be constructed at Grand Coulee and...
    • Map of irrigable areas and canal system, pumping plan (1923)

    • Irrigation--Washington (State)--Columbia River Valley--Maps; Columbia Basin Project (U.S.)
    • 1 map ; negative : 32 x 27 cm. This was a preliminary map showing one particular plan for the irrigation of the Columbia Basin. As noted in the title, this map represented the pumping plan, whereby a dam would be constructed at Grand Coulee and...

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