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You searched for: Genre Geospatial data Remove constraint Genre: Geospatial data Subject Inland Waters Remove constraint Subject: Inland Waters Time Period 1950-1999 Remove constraint Time Period: 1950-1999
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1.
Vector

104 State Water Plan Watersheds: Pennsylvania penn-state

1998. 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,...

4.
Polygon

Backshore Condition, Wisconsin 1976 wisconsin

1976. Association of State Floodplain Managers (ASFPM). These inventories are from the research of David Mickelson, Senior Scientist and Emeritus Professor at the University of Wisconsin. The Shoreline I...

6.
Polygon

Beach Protection, Wisconsin 1976 wisconsin

1976. Association of State Floodplain Managers (ASFPM). These inventories are from the research of David Mickelson, Senior Scientist and Emeritus Professor at the University of Wisconsin. The Shoreline I...

8.
Vector

Boundary of Conneaut Lake: Pennsylvania penn-state

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.

14.
Vector

Dams: Centre County, Pennsylvania penn-state

1995-2016. Centre County Government. Point Feature Class - It was originally captured as part of the 1995 Aerial Imagery project completed by Kimball.

16.
Vector

Fish Species Occurrence Database: Pennsylvania penn-state

1998. Pennsylvania Fish and Boat Commission. Historical listing (1975-1995) of Pennsylvania fish species occurrences, as documented at 10,780 sampling points on streams and rivers throughout t...

17.
Vector

Floodplains From 1985: Washington, D.C. maryland

1985. City of Washington, DC. Floodplains from 1985. The FIRM is the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Progr...

18.
Vector

Floodplains of Pennsylvania penn-state

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...

21.
Vector

Major River Basins: Pennsylvania penn-state

1998. Environmental Resources Research Institute. This polygon layer delineates the boundaries of 8 major watersheds in Pennsylvania that have shown through past vertebrate inventory collection rec...

22.
Vector

Major Rivers: Pennsylvania penn-state

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

27.

National Wetlands Inventory, 1980-1986: Minnesota minnesota

1980-1986. Minnesota Department of Natural Resouces (DNR). Wetland area features mapped as part of the National Wetlands Inventory (NWI). The National Wetlands Inventory is a national program sponsored by t...

28.
Mixed

National Wetlands Inventory: Illinois, 1987 illinois

1980-1987. U.S. Fish and Wildlife Service, Illinois Department of Natural Resources, Illinois Natural History Survey, and Illinois State Geological 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...

29.
Vector

Networked streams of Pennsylvania penn-state

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...

33.
Point

Shoreline Structure, Wisconsin 1976 wisconsin

1976. Association of State Floodplain Managers (ASFPM). These inventories are from the research of David Mickelson, Senior Scientist and Emeritus Professor at the University of Wisconsin.The Shoreline In...

34.
Vector

Small Watersheds: Pennsylvania penn-state

1997. Environmental Resources Research Institute. Boundaries of 9,895 watersheds in Pennsylvania indicated in the Pennsylvania gazetteer of streams. These boundaries enclose catchment areas for nam...

38.
Vector

Streams: Dauphin County, Pennsylvania penn-state

1990. Dauphin County, PA. Reference dataset showing streams in Dauphin County, PA. Most likely derived from a PennDOT dataset in the early 1990s. This layer is updated on an...

40.
Vector

Topographic Contours: Philadephia, Pennsylvania penn-state

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

44.
Vector

Waterbodies: Washington, D.C., 1999 maryland

1999. City of Washington, DC. Water bodies captured in 1999. Contract NCPC 93-02. This document describes the planimetric map production for the 350 tiles located in Washington ...

46.
Vector

Wetlands - Line: Chester County, Pennsylvania penn-state

1997. U S Fish and Wildlife Service. 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...

47.
Vector

Wetlands - Point: Chester County, Pennsylvania penn-state

1997. U S Fish and Wildlife Service. 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...