National Geologic Map Database
General Information
- Title: Report of progress in Armstrong County
- Author(s): Platt, W.G.
- Publishing Organization: Pennsylvania Second Geological Survey (1874-1889)
- Series and Number: Report H5
- Publication Date: 1880
- Map Scale: 1:125,000
- Cross Section: None
- North Latitude: 41° 10' 16" N (41.1710)
- South Latitude: 40° 31' 52" N (40.5310)
- East Longitude: 79° 12' 29" W (-79.2080)
- West Longitude: 79° 41' 31" W (-79.6920)
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.