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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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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,...

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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.

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Dams: Centre County, Pennsylvania penn-state

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

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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...

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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...

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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...

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Hydrography Polygons: Dauphin County, Pennsylvania penn-state

1990. Dauphin County, PA. Reference dataset showing water bodies in Dauphin County. Most likely derived from a PennDOT dataset in the early 1990s. Updated as needed.

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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...

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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.

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Mile Markers: Red River of the North and Bois de Sioux River minnesota

1991-1992. US Army Corps of Engineers, St. Paul District Office. The river mileage established by the US Army Corps of Engineers is from Plates 2-13 from the Souris-Red-Rainy River Basins, Red River Type II Study...