National Geologic Map Database
Title: Geologic map of the Ashland quadrangle, Columbia and Schuylkill Counties, Pennsylvania
Author(s): Arndt, H.H.
Publishing Organization: U.S. Geological Survey
Series and Number: Geologic Quadrangle Map GQ-918
- Publication Date: 1971
- Map Scale: 1:24,000
- Cross Section: Yes
- North Latitude: 40° 52' 30" N (40.8750)
- South Latitude: 40° 45' 0" N (40.7500)
- East Longitude: 76° 15' 0" W (-76.2500)
- West Longitude: 76° 22' 30" W (-76.3750)
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.