Publisher: Dept. of the Interior, U.S. Geological Survey / Spatial Coverage: Columbia County. - Yale University Library GeoBlacklight Search Results

Start Over Publisher Dept. of the Interior, U.S. Geological Survey Spatial Coverage Columbia County.

1. Geology of anthracite in the eastern part of the Ashland quadrangle, Pennsylvania

1954. 2018-06-21T19:48:45Z. 2018-06-21T19:48:45Z. Haley, Boyd Raymond, 1922-. Dept. of the Interior, U.S. Geological Survey. English. cartographic image. Public. Pennsylvania, Columbia County, Schuylkill County, Columbia County., and Schuylkill County.

2. Geology of anthracite in the western part of the Ashland Quadrangle, Pennsylvania

1953. 2018-06-21T19:58:36Z. 2018-06-21T19:58:36Z. Haley, Boyd Raymond, 1922-. Dept. of the Interior, U.S. Geological Survey. English. cartographic image. Public. Pennsylvania, Columbia County, Schuylkill County, Columbia County., and Schuylkill County.