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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.
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104 State Water Plan Watersheds: Pennsylvania

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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Allegan County GIS Data Library

1999-2019. Allegan County Land Information Services. The GIS Data Library page on the Allegan County, Michigan website provides links for zipped shapefile downloads. Common resource topics are covered...

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Anoka County GIS Data Downloads

1970-2019. Transportation Division, GIS Department. The Anoka County, Minnesota website GIS page provides an FTP service link for geospatial data download access. Geospatial datasets are available fo...

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Boundary of Conneaut Lake: Pennsylvania

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

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

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.

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

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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GIS Downloads for Putnam County, Ohio

1995-present. Putnam County GIS Office. Website containing downloadable shapefiles for parcels, addresses, transportation, boundaries, hydrology, geology, and more. Also contains 1995-201...

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Hydrography Polygons: Dauphin County, Pennsylvania

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

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

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

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...

25.
National Wetlands Inventory, 1980-1986: Minnesota

National Wetlands Inventory, 1980-1986: 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...

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National Wetlands Inventory: Illinois, 1987

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...

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Networked streams of Pennsylvania

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...

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Scenic Rivers: Pennsylvania

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

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Small Watersheds: Pennsylvania

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...

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Streams: Dauphin County, Pennsylvania

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...

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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" = ...

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Washington County Open Data

1997-2019. Public Works, Survey Division. The Washington County, Minnesota government provides an ArcGIS Open Data portal for geospatial data download access. Datasets are available for com...

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Waterbodies: Washington, D.C., 1999

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 ...

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Wetlands - Line: Chester County, Pennsylvania

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...

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Wetlands - Point: Chester County, Pennsylvania

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...

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Wetlands: Maryland, 1972

Wetlands: Maryland, 1972

1972. ArcGIS Online for Maryland. This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov.This is a map service of the 1972 Wetland Maps. These are guida...

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Will County Data

1961-2019. Will County GIS. Geospatial datasets are publicly available on the Will County, IL website GIS Division page linked here. The page provides access to zipped downloa...