Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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You searched for: Subject Inland Waters Remove constraint Subject: Inland Waters Time Period 1950-1999 Remove constraint Time Period: 1950-1999
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1. Ambient and Fixed Station Network (FSN) Groundwater Monitoring Point Data (1985 - 1998): Pennsylvania, 1999

1985. PA Department of Environmental Protection. This coverage represents the point locations and data for 1,106 groundwater quality monitoring points sampled under the PA DEP Fixed Station Networ...

2. Aquatic Resources Group: Pennsylvania, 2006

1992. Natural Lands Trust with input data from PA DEP. This raster dataset is a compilation of several data sets that have been combined to create an overall aquatic resources conservation value raster ...

3. Boundaries of exceptional value watersheds: Pennsylvania , 1996

1995. Environmental Resources Research Institute. Watersheds of exceptional quality streams.

4. Boundary of Conneaut Lake: Pennsylvania, 1993

1993. Loree Speedy, Western Pennsylvania Conservancy. Boundary of Conneaut Lake, Crawford County, Pennsylvania. This polyline does not include the many docks that extend into the lake.

5. Chesapeake Bay Basin Major Watersheds: Pennsylvania, 1996

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

6. Chesapeake Bay Region State Boundaries: Pennsylvania, 1996

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

7. Chesapeake Bay Watershed land use/land cover v105: Chesapeake Bay, 2000

1999. University of Maryland and Regional Earth Science Applications Center (RESAC). A land cover map of the Chesapeake Bay Watershed plus the non-watershed components of counties that intersect the Watershed. The map has 17 cover c...

8. Chester County, PA Wetlands - Line: Pennsylvania, 1997

1997. U.S. Fish & Wildlife Service, National Wetlands Inventory. NWI digital data files are records of wetlands location and classification as defined by the U.S. Fish & Wildlife Service. This dataset is a compil...

9. Chester County, PA Wetlands - Point: Pennsylvania, 1997

1997. U.S. Fish & Wildlife Service, National Wetlands Inventory. NWI digital data files are records of wetlands location and classification as defined by the U.S. Fish & Wildlife Service. This dataset is a compil...

10. Coastal Floodplains: Pennsylvania, 1996

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

11. Cultural Assessment of the Chesapeake Bay Watershed: Chesapeake Bay, 2000

1999. Multiple TIFF and layer files pertaining to Cultural Assessment of the Chesapeake Bay watershed Growth and development not only threaten lands of h...

12. Floodplains from 1985: Washington, D.C.

1985. District of Columbia GIS Program. Floodplains from 1985. The FIRM is the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Progr...

13. Floodplains of Pennsylvania: Pennsylvania, 1996

1995. 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...

14. National Wetlands Inventory: Illinois, 1987

1980. U.S. Fish and Wildlife Service, Illinois Department of Natural Resources, and Illinois Natural History Survey. This feature dataset contains wetlands and deepwater habitats in Illinois is of 1987 based on U.S. Fish and Wildlife Service National Wetlands Inve...

15. Networked streams of Pennsylvania: Pennsylvania, 1998

1998. Environmental Resources Research Institute. The connected network of streams and waterways of Pennsylvania are indicated as single lines in this coverage. Waterways are given connected topolo...

16. NHDFlowline - Medium Resolution: Pennsylvania, 1999

1998. U.S. Geological Survey in cooperation with the U.S. Environmental Protection Agency. The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the sream segments or reaches that co...

17. NHDWaterbody - Medium Resolution: Pennsylvania, 1999

1998. U.S. Geological Survey in cooperation with the U.S. Environmental Protection Agency. The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the sream segments or reaches that co...

18. NHDWatersheds: Pennsylvania, 1999

1998. U.S. Geological Survey in cooperation with the U.S. Environmental Protection Agency. The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the sream segments or reaches that co...

19. One-Hundred and Five-Hundred Year Floodzones for Unincorporated Areas: Illinois, 2006

1996. Illinois State Water Survey. This feature class was quickly assembled from old Arc/Info coverages to produce a general graphic image and has not reviewed or quality-controlled ...

20. Pennsylvania - 104 State Water Plan watersheds: Pennsylvania, 1998

1997. Environmental Resources Research Institute. Digitized boundaries of 104 major watersheds defined in the Pennsylvania state water plan. The State Water Plan, originally developed in the 1970s,...