Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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1.
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Active Railroads: Pennsylvania

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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Aerial gamma radiation in Minnesota and adjacent areas of North Dakota and South Dakota, M-83

Aerial gamma radiation in Minnesota and adjacent areas of North Dakota and South Dakota, M-83

1996. Lively, R.S. and Morey, G.B. Maps showing general Quaternary age surface geology of Minnesota and distribution of uranium, thorium and potassium-40 in surface sediments, scale ...

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Raster
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Raster

Aerial Photography 1996: Philadephia, Pennsylvania

1996. Philadelphia aerial photography.

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Agricultural security areas: Pennsylvania

1996. Penn State ORSER/ERRI. Agricultural security areas from LLRWS data.

6.
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Archived Submerged Aquatic Vegetation - SAV 1996: Maryland

1996. This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. The Chesapeake Bay SAV was mapped from 1:24,000 black and whit...

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Mixed

Bedrock Geology of Illinois - Geologic Units, 2004

1996. Illinois State Geological Survey. This feature class shows the distribution and extent of the bedrock geologic units within the State of Illinois, as depicted on the Geologic Map of...

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Boundaries Of Exceptional Value Watersheds: Pennsylvania

1996. Environmental Resources Research Institute. Watersheds of exceptional quality streams.

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Chesapeake Bay basin major watersheds

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

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Chesapeake Bay region state boundaries

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

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Coal Mined Areas: Pennsylvania

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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Coastal Floodplains: Pennsylvania

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

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Raster

Digital Elevation Model - 10-Meter: Pennsylvania

1996. United States Geological Survey (USGS). Digital Elevation Model (DEM) is the terminology adopted by the USGS to describe terrain elevation data sets in a digital raster form. The standard...

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Raster

Digital Elevation Model - 30-Meter: Pennsylvania

1996. United States Geological Survey (USGS). Digital Elevation Model (DEM) is the terminology adopted by the USGS to describe terrain elevation data sets in a digital raster form. The standard...

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Ecoregions: Pennsylvania

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

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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...

17.
Geologic atlas of Fillmore County, Minnesota, C-8, Part B, Plate 6, Bedrock Hydrogeology

Geologic atlas of Fillmore County, Minnesota, C-8, Part B, Plate 6, Bedrock Hydrogeology

1996. Falteisek, Jan, Zhang, Hua, and Kanivetsky, Roman. Maps showing where and how much ground water may be present and aquifer characteristics of the bedrock geologic units, scale 1:100,000, Fillmore Co...

18.
Geologic atlas of Fillmore County, Minnesota, C-8, Part B, Plate 7, Pollution Sensitivity

Geologic atlas of Fillmore County, Minnesota, C-8, Part B, Plate 7, Pollution Sensitivity

1996. Falteisek, Jan and Zhang, Hua. Map showing the susceptibility of the ground water system (bedrock and unconsolidated sediment aquifers) to contamination, scale 1:100,000, Fillmor...

19.
Geologic atlas of Fillmore County, Minnesota, C-8, Part B, Plate 8, Sinkholes and Sinkhole Probability

Geologic atlas of Fillmore County, Minnesota, C-8, Part B, Plate 8, Sinkholes and Sinkhole Probability

1996. Falteisek, Jan, Witthuhn, Kathleen, M., and Alexander, E. Calvin, Jr. Map showing location of sinkholes and likelihood of future sinkhole development, scale 1:100,000, Fillmore County.

20.
Geologic atlas of Fillmore County, Minnesota, C-8, Part B, Plate 9, Springsheds

Geologic atlas of Fillmore County, Minnesota, C-8, Part B, Plate 9, Springsheds

1996. Falteisek, Jan, Alexander, E. Calvin, Jr., Green Jeffrey A., Alexander, Scott C., and Spong, Ronald C. Map showing the locations of springs and seeps and the interaction of surface drainage, karst (carbonate rock with caves, springs) ground water and...