National Geologic Map Database
Product Description Page
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Title: The ancient volcanic rocks of South Mountain, Pennsylvania
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Author(s): Bascom, Florence
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Publishing Organization: U.S. Geological Survey
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Series and Number: Bulletin 136
- Publication Date: 1896
- Map Scale: 1:19,056
- Cross Section: None
- North Latitude: 39° 52' 30" N (39.8750)
- South Latitude: 39° 45' 0" N (39.7500)
- East Longitude: 77° 27' 29" W (-77.4580)
- West Longitude: 77° 32' 31" W (-77.5420)
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.