Annual Report of the Geological Survey of Pennsylvania....1885-1887: Map and section along the Lehigh River, sheet no. 1Geological Survey of Pennsylvania, Pennsylvania. Board of Commissioners for the Second Geological Survey Board of Commissioners for the Second Geological Survey, 1887 Includes 3 atlases of fold. plates, fold. maps, fold. tab. which accompany 1885; 1886, pts. 3-4. |
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Allegheny county Allegheny river anticlinal axis Bearing-in coal benches branch Breast coal Brick coal bushels butt entries Chartiers creek coal is opened coal measures coal shows country pit Crinoidal Crinoidal limestone crop crosses district drains Dunkard creek east exposed extends Fayette feet thick fork Freeport geology Greene county hill inches limestone Lisbon Lisbon basin Lower bottom coal lower division Main clay main entry miles mill mines Monongahela river Murraysville nearly north-east north-west Ohio river outcrop output passes Peters creek pike pit mouth Pittsburgh bed Pittsburgh coal bed portion ravine road roof coal Roof division sandstone Sandy Shale school house Sewickley coal Sewickley creek slate south-west station Steubenville pike stream swamp synclinal tipple tons township lies trough tunnel Upper Barren measures Upper Freeport coal Upper Productive measures Washington coal Washington county Waynesburg Waynesburg coal Westmoreland Westmoreland county yards Youghiogheny river