1901. 2011-05-26T15:37:03Z. 2015-10-21T14:59:59Z. Geological Survey (U.S.). United States, Dept. of the Interior, Geological Survey. English. Public. Ellensburg (Wash.), Kittitas County (Wash.), Naches River (Wash.), Snoqualmie National Forest (Wash.), Washington (State), Yakama Indian Reservation (Wash.), Yakima (Wash.), and Yakima County (Wash.).
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1937. 2011-05-26T17:47:24Z. 2015-10-21T15:00:01Z. Geological Survey (U.S.). United States, Dept. of the Interior, Geological Survey. English. Public. Ahtanum Ridge (Wash.), Klickitat County (Wash.), Washington (State), White Swan (Wash.), Yakama Indian Reservation (Wash.), and Yakima County (Wash.).