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You searched for: Publisher The Pennsylvania State University Remove constraint Publisher: The Pennsylvania State University 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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Active Railroads: Pennsylvania penn-state

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.

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Coal Mined Areas: Pennsylvania penn-state

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...

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Ecoregions: Pennsylvania penn-state

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

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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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Fractional Vegetation Cover for Northeast Pennsylvania, 1985 penn-state

1985. Dr. Toby Carlson, Penn State University. Fractional vegetation cover for Pennsylvania was estimated from Thematic Mapper data using algorithms developed by Dr. Toby Carlson. Values range f...

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Fractional Vegetation Cover for Northwest Pennsylvania, 1985 penn-state

1985. Dr. Toby Carlson, Penn State University. Fractional vegetation cover for Pennsylvania was estimated from Thematic Mapper data using algorithms developed by Dr. Toby Carlson. Values range f...

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Fractional Vegetation Cover for Southeast Pennsylvania, 1985 penn-state

1985. Dr. Toby Carlson, Penn State University. Fractional vegetation cover for Pennsylvania was estimated from Thematic Mapper data using algorithms developed by Dr. Toby Carlson. Values range f...

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Fractional Vegetation Cover for Southwest Pennsylvania, 1985 penn-state

1985. Dr. Toby Carlson, Penn State University. Fractional vegetation cover for Pennsylvania was estimated from Thematic Mapper data using algorithms developed by Dr. Toby Carlson. Values range f...

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Gap Stewardship: Pennsylvania penn-state

1999. Joseph A. Bishop. Coverage showing stewardship of managed conservation lands throughout the Commonwealth. Includes federal, state, county and privately owned lands i...

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Inactive Railroads: Pennsylvania penn-state

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.