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1. Active Railroads: Pennsylvania

1996. Environmental Resources Research Institute. Location of active rail lines in Pennsylvania, digitized from 1:24,000 USGS topographic maps on a stable mylar base.

2. Agricultural security areas: Pennsylvania

1996. Penn State ORSER/ERRI. Agricultural security areas from LLRWS data.

3. Boundaries Of Exceptional Value Watersheds: Pennsylvania

1996. Environmental Resources Research Institute. Watersheds of exceptional quality streams.

4. Chesapeake Bay basin major watersheds

1996. Penn State ORSER/ERRI. Major watershed boundaries for the Chesapeake Bay basin.

5. Chesapeake Bay region state boundaries

1996. Penn State ORSER/ERRI. Boundaries for the states in the Chesapeake Bay region.

6. Coal Mined Areas: Pennsylvania

1996. Environmental Resources Research Institute. Location of mined areas, including surface and deep coal and non-coal mining. Data incomplete, areas not mapped when screened at small scales durin...

7. Coastal Floodplains: Pennsylvania

1996. Penn State ORSER/ERRI. Coastal floodplains from LLRWS data.

8. Ecoregions: Pennsylvania

1996. Penn State ORSER/ERRI. Draft ecoregions from the EPA.

9. Floodplains of Pennsylvania

1996. Office of Remote Sensing for Earth Resources, Penn State University. In an effort to expedite the permit review process for Water Obstruction and Encroachment Applications, the Pennsylvania Department of Environmenta...

10. Inactive Railroads: Pennsylvania

1996. Environmental Resources Research Institute. Location of inactive rail lines in Pennsylvania, digitized from 1:24,000 USGS topographic maps on a stable mylar base.

11. Landmarks in Pennsylvania

1996. Environmental Resources Research Institute. National Park Service information used to establish landmark boundaries on 1:24,000 USGS topographic maps.

12. Major Rivers: Pennsylvania

1996. Environmental Resources Research Institute. Major rivers as derived from Pennsylvania Dept. of Transportation's streams database, which is organized by county.

13. National Fish Hatcheries in Pennsylvania

1996. Environmental Resources Research Institute. Boundaries of fish hatcheries on 1:24,000 USGS topographic maps, locations verified from the National Park Service list.

14. National forests in Pennsylvania

1996. Environmental Resources Research Institute. Boundary information from the office of the Allegheny National Forest, taken from 1:24,000 USGS topographic maps.

15. National parks in Pennsylvania

1996. Environmental Resources Research Institute. National Park Service list and boundaries from 1:24,000 USGS topographic maps.

16. National Wildlife Preserves in Pennsylvania

1996. Environmental Resources Research Institute. Boundaries of National Wildlife Preserves in Pennsylvania. Boundaries were provided by the United States Department of the Interior, National Fish ...

17. Oil And Gas Fields: Pennsylvania

1996. Environmental Resources Research Institute. Point locations of oil and gas fields from Pennsylvania Department of Environmental Resources, Bureau of Topographic and Geologic Survey /8PAGS/9 W...

18. Oil And Gas Wells: Pennsylvania

1996. Environmental Resources Research Institute. Point locations of oil and gas wells from Pennsylvania Department of Environmental Resources, Bureau of Topographic and Geologic Survey /8PAGS/9 We...

19. Scenic Rivers: Pennsylvania

1996. Environmental Resources Research Institute. State designated scenic rivers.

20. Spring Creek Watershed 30-meter digital elevation model: Pennsylvania

1996. Environmental Resources Research Institute. 30-meter contours, digital elevation model for the geographic area coverage of the Spring Creek Watershed.

21. Spring Creek Watershed 7.5 minute quadrangle coverage: Pennsylvania

1996. Environmental Resources Research Institute. File shows those United States Geological Survey 7.5-minute quadrangles which overlay the geographic extent of the watershed.

22. Spring Creek Watershed basin area: Pennsylvania

1996. Environmental Resources Research Institute. Basin area of the Spring Creek Watershed. Includes subbasins for all tributaries within the Spring Creek Watershed.

23. Spring Creek Watershed boundaries: Pennsylvania

1996. Environmental Resources Research Institute. Geographic boundaries of the Spring Creek Watershed.

24. Spring Creek Watershed buffer boundaries: Pennsylvania

1996. Environmental Resources Research Institute. Shows 1 km. buffer zone bounding the perimeter of the Spring Creek Watershed.

25. Spring Creek Watershed minor civil divisions: Pennsylvania

1996. Environmental Resources Research Institute. Shows minor civil divisions located in the Spring Creek Watershed.

26. Spring Creek Watershed PCB and other pollution data: Pennsylvania

1996. Environmental Resources Research Institute. Shows sources and locations of Polychlorinated biphenyls (PCBs) and trichloroethene pollutants in the Spring Creek Watershed.

27. Spring Creek Watershed roads: Pennsylvania

1996. Environmental Resources Research Institute. Roads and road network located in the Spring Creek Watershed.

28. Spring Creek Watershed soils: Pennsylvania

1996. Environmental Resources Research Institute. Soil types located in the Spring Creek Watershed. Taken from the Centre County soils classification.

29. Spring Creek Watershed STATSGO soil coverage: Pennsylvania

1996. Environmental Resources Research Institute. STATSGO, state-wide soil coverage for areas within the Spring Creek Watershed.

30. Spring Creek Watershed streams: Pennsylvania

1996. Environmental Resources Research Institute. Streams within the Spring Creek Watershed.

31. Spring Creek Watershed wetlands: Pennsylvania

1996. Environmental Resources Research Institute. Shows wetlands within the Spring Creek Watershed. Wetlands Classification reference numbers: RZUBH U PUBHn.

32. Topographic Contours: Philadephia, Pennsylvania

1996. Water Department - Information Systems & Technology. Planimetric Coverage containing the delineation of topographic contours. Annotation of Contour Line elevations exists. Annotation viewable at 1' = ...