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Created1945-02-19
Description

C.C. Tillotson to Carl T. Hayden, 2/19/1945 re: Colorado-Verde Project, water allocations and Mexican water.

Created1945-04-27
Description

C.C. Tillotson to Carl T. Hayden, 4/27/1944 re: Colorado-Verde Project, water allocations and Mexican water.

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ContributorsDarton, Nelson Horatio (Author) / Fred Harvey (Publisher)
Created1917
DescriptionBooklet describing a geological survey of the Grand Canyon. Four editions: 1917, 1929, 1936, 1950.