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- Natural Lands Trust43
- Delaware Valley Regional Planning Commission3
- Geological Survey (U.S.)3
- Allegheny County Division of Computer Services Geographic Information Systems Group2
- Natural Lands Trus2
- Lehigh Valley Planning Commission, U.S. Geological Survey1
- Nature Conservancy (U.S.)1
- Oak Ridge National Laboratory1
- USDA-FSA Aerial Photography Field Office1
- USDA_FSA_APFO Aerial Photography Field Office1
- University of Vermont Spatial Analysis Laboratory1
- University of Vermont Spatial Analysis Laboratory Allegheny County Division of Computer Services Geographic Information Systems Group1