1925. 2011-05-19T19:56:47Z. 2011-05-19T19:56:47Z. Geological Survey (U.S.). The Survey. English. Public. Virginia, West Virginia, Staunton Region (Va.), Augusta County (Va.), Highland County (Va.), Rockingham County (Va.), and Shenandoah National Park (Va.).
Search Results
1912. 2011-05-31T17:26:12Z. 2015-10-21T15:00:06Z. Geological Survey (U.S.). The Survey. English. Public. Page County (Va.), Rockingham County (Va.), Shenandoah County (Va.), Virginia, West Virginia, and Woodstock Region (Shenandoah County, Va.).
1893. 2011-05-31T13:50:46Z. 2015-10-21T15:00:05Z. Geological Survey (U.S.). The Survey. English. Public. Clarke County (Va.), Harpers Ferry (W. Va.), Loudoun County (Va.), Maryland, Virginia, and West Virginia.
1925. 2011-06-01T13:31:50Z. 2015-10-21T15:00:10Z. Geological Survey (U.S.). The Survey. English. Public. Oregon.
1987. 2012-07-30T14:35:23Z. 2012-07-30T14:35:23Z. Geological Survey (U.S.). The Survey. English. Public. Maryland.
1897. 2013-03-13T16:05:46Z. 2013-03-13T16:05:46Z. Keith, Arthur. The Survey. English. Public. Tennessee, Cumberland County, Fentress County, Morgan County, and Scott County.
1880. 2011-11-28T18:20:36Z. 2022-03-29T20:38:42Z. Geological Survey (U.S.). The Survey. English. Public. Washington (State).
1901. 2002-09-10T13:00:25Z. 2019-05-13T17:58:10Z. Geological Survey (U.S.). The Survey. English. Public. Washington (State), Chelan County, Douglas County, Okanogan County, Chelan County (Wash.), and Douglas County (Wash.).
1900. 2002-09-09T21:19:20Z. 2019-05-13T17:58:25Z. Geological Survey (U.S.). The Survey. English. Public. Washington (State), Yakima County, Kittitas County, and Yakima County (Wash.).
1900. 2002-09-09T21:16:07Z. 2019-05-13T17:58:38Z. Geological Survey (U.S.). The Survey. English. Public. Washington (State), Kittitas County, Chelan County, Kittitas County (Wash.), Chelan County (Wash.), and Wenatchee National Forest (Wash.).
