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  • Existing authorized and recommended projects, (ca. 1952)
  • Dams--Washington (State); Irrigation--Washington (State)--Columbia River Valley--Maps; Columbia Basin Irrigation Project (U.S.); Columbia River--Regulation--Maps; Snake River--Regulation--Maps; Water resources development--Northwest, Pacific--Maps
  • 1 map : col.; 28 x 54 cm. The map provides a bird's-eye view of existing dam projects, federal projects under construction, authorized federal projects, recommended federal projects, and non-federal damming projects under way. Information is also...
  • Early Washington Maps
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  • Sultan (1921). Washington 1:125,000 topographic quadrangles
  • Washington (State)--Maps, Topographic
  • 1 map : col. ; 45 x 31 cm. or smaller. Relief shown by contours and spot heights. Title supplied by cataloger. Set includes various editions. "Surveyed in 1919-1921". Contour interval 100 feet. Datum is mean sea level." Highway information shown in...
  • Early Washington Maps

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