Filters: Tags: Pennsylvania Bulletin 447 (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts U.S. Geological Survey Phalen, William Clifton Categories Image (4) Tag Types collection (4) category (4) label (4) Tag Schemes http://www.sciencebase.gov/vocab/undefined/DenverHistoryPhotoLibrary/Collections (4) http://www.sciencebase.gov/vocab/undefined/DenverHistoryPhotoLibrary/PhotoMedia (4) http://www.sciencebase.gov/vocab/undefined/DenverHistoryPhotoLibrary/Categories (2) View Results as: JSON ATOM CSV

Upper Freeport coal with overlying shales and base of Mahoning sandstone at south portal of Baltimore and Ohio railroad tunnel, Stony Creek. Pennsylvania. 1906. Upper Freeport coal with overlying shales and base of Mahoning sandstone at south portal of Baltimore and Ohio railroad tunnel, Stony Creek. Cambria County, Pennsylvania. 1906. Plate 7-B in U.S. Geological Survey. Bulletin 447. 1911. Categories: Image; Tags: Pennsylvania Bulletin 447, Phalen, W.C. Collection, Photographers, Railroad, photo print Country bank of the better class on the Upper Kittanning coal near Mineral Point. Cambria County, Pennsylvania. 1906. Country bank of the better class on the Upper Kittanning coal near Mineral Point. Cambria County, Pennsylvania. 1906. Plate 4-B in U.S. Geological Survey. Bulletin 447. 1911. Categories: Image; Tags: Pennsylvania Bulletin 447, Phalen, W.C. Collection, Photographers, photo print Exposure of Lower Freeport coal on Stony Creek, near trolley bridge, the underlying sandstone is the Butler. Pennsylvania, 1906. Exposure of Lower Freeport coal on Stony Creek, near trolley bridge, the underlying sandstone is the Butler. The Lower Freeport limestone member shows below the coal. Cambria County, Pennsylvania. 1906. Plate 4-A in U.S. Geological Survey. Bulletin 447. 1911. Categories: Image; Tags: Pennsylvania Bulletin 447, Phalen, W.C. Collection, Photographers, photo print Loyalhanna limestone, top member of Pocono formation, at summit of Ebensburg (viaduct) anticline, Mineral Point. Pennsylvania, 1906. Loyalhanna limestone, top member of Pocono formation, at summit of Ebensburg (viaduct) anticline, Mineral Point. Cambria County, Pennsylvania. 1906. Plate 6-B in U.S. Geological Survey. Bulletin 447. 1911. Categories: Image; Tags: Formations, Pennsylvania Bulletin 447, Phalen, W.C. Collection, Photographers, photo print