Coal Resources of Allegheny County, Pennsylvania: Coal crop lines, mined-out areas, and structure contours
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Published: 1985
Total Pages: 156
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Coal Resources of Allegheny County, Pennsylvania
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Published: 1985
Total Pages: 154
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DOWNLOAD EBOOKCoal Resources of Greene County, Pennsylvania
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Published: 1984
Total Pages: 148
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DOWNLOAD EBOOKCoal Resources of Washington County, Pennsylvania: Coal crop lines, mined-out areas, and structure contours
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Published: 1987
Total Pages: 202
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DOWNLOAD EBOOKCoal Resources of Westmoreland County, Pennsylvania: Coal crop lines, mined-out areas, and structure contours
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Published: 1988
Total Pages: 256
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DOWNLOAD EBOOKCoal Crop Lines, Mined-out Areas, and Structure Contours
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Published: 1985
Total Pages: 188
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DOWNLOAD EBOOKCoal Resources of Butler County, Pennsylvania: Coal crop lines, mined-out areas, and structure contours
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Published: 1985
Total Pages: 236
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DOWNLOAD EBOOKCoal Resources of Clarion County, Pennsylvania: Coal crop lines, mined-out area, and structure contours
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Published: 1987
Total Pages: 252
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DOWNLOAD EBOOKMon/Fayette Transportation Project, I-70 to PA-51, Washington and Allegheny Counties
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Published: 1994
Total Pages: 672
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