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

Start Over Subject Natural gas Spatial Coverage Washington County

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.

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