Map of zones where land use can be affected by landsliding, flooding, and undermining, Allegheny County, Pennsylvania [map] / By Reginald P. Briggs and William R. Kohl.
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| Corporate Authors: | , |
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| Format: | Government Document Map |
| Language: | English |
| Published: |
Reston, Va. :
U.S. Geological Survey,
1975.
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| Series: | Miscellaneous field studies ;
map MF-685-D. |
| Subjects: |
| Item Description: | Includes text and bibliography. "In cooperation with the Appalachian Regional Commission." Insets: Main contiguous urbanized area, Allegheny County... --Pennsylvania county index map -- ...Locations of 7 1/2 minute quadrangles. |
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| Physical Description: | 2 maps ; 114 x 86 cm. |