Subject: Natural gas / Spatial Coverage: Pennsylvania - Yale University Library GeoBlacklight Search Results

1. Burgettstown-Carnegie folio, Pennsylvania

1911. 2013-03-14T18:13:26Z. 2021-09-22T17:59:06Z. Shaw, E. W. (Eugene Wesley), 1881-1935. The Survey. English. Public. Pennsylvania, Allegheny County, Beaver County, and Washington County.

2. Claysville folio, Pennsylvania

1912. 2013-03-14T18:31:42Z. 2013-03-14T18:31:42Z. Munn, M. J. (Malcolm John), 1874-1949. The Survey. English. Public. Pennsylvania, Greene County, and Washington County.

3. Foxburg-Clarion folio, Pennsylvania

1911. 2013-03-14T18:16:03Z. 2013-03-14T18:16:03Z. Shaw, E. W. (Eugene Wesley), 1881-1935. The Survey. English. Public. Pennsylvania, Armstrong County, Butler County, Clarion County, and Venango County.

4. Oil and gas fields of Pennsylvania [cartographic material]

1982. 2016-06-29T14:13:35Z. 2016-09-26T18:11:03Z. Harper, J. A. The Bureau. English. Public. Pennsylvania and Pennsylvania.

5. Oil and gas fields of western Pennsylvania

1932. 2010-08-31T18:24:04Z. 2015-10-27T22:25:36Z. Pennsylvania. Bureau of Topographic and Geologic Survey. Topographic and Geologic Survey. English. Public. Pennsylvania.

6. Sewickley folio, Pennsylvania

1911. 2013-03-14T18:10:52Z. 2013-03-14T18:10:52Z. Munn, M. J. (Malcolm John), 1874-1949. U.S. Geological Survey. English. Public. Pennsylvania, Allegheny County, Beaver County, and Butler County.