1981. 2002-06-01T04:00:00Z. 2023-02-22T04:01:21Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Appalachian Region.
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2. Joint patterns in sandstone and quartzose siltstone in the Appalachian Basin [cartographic material]
1981. 2002-06-01T04:00:00Z. 2023-02-22T04:01:21Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Appalachian Region.
1989. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey : [Books and Open-File Reports Section, distributor]. English. Public. Colorado, Southern Ute Indian Reservation, and San Juan Basin (N.M. and Colo.).