Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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1. Stratification of Delaware: Delaware, 2002

1998. United States Department of Agriculture, National Agricultural. The United States Department of Agriculture (USDA), National Agricultural Statistics Service (NASS) area sampling frame is a delineation of all par...

2. 1:250k Digital Raster Graphic - Collars Removed: Minnesota

1998. U.S. Geological Survey and Minnesota DNR. A digital raster graphic (DRG) is a scanned image of an U.S. Geological Survey (USGS) standard series topographic map, including all map collar inf...

3. Annual Average Daily Traffic (AADT) Turning Traffic: Iowa, 1998

1998. Iowa Department of Transportation. Iowa turning traffic data (AADT) for intersections on the primary, secondary and municipal roadway systems for 1998. The state is divided into 4 qu...

4. Appalachian National Scenic Trail - Centerline: Appalachian Trail, 2001

1998. Appalachian Trail Conference and National Park Service Appalachian Trail Park Office. This data set represents the most current depiction of the Appalachian National Scenic Trail centerline. Locational information used to create this...

5. Appalachian National Scenic Trail - Major Parks and Forests: Appalachian Trail, 2001

1998. Appalachian Trail Conference and National Park Service Appalachian Trail Park Office. This data set represents the most current depiction of the Major Parks and Forests polygon along the Appalachian Trail. Locational information used...

6. Appalachian National Scenic Trail - Shelter Locations: Pennsylvania, 2001

1998. Appalachian Trail Conference and National Park Service Appalachian Trail Park Office. This data set represents the most current depiction of the Appalachian National Scenic Trail Shelter locations. Locational information used to crea...

7. Archived Submerged Aquatic Vegetation - SAV 1998: Maryland

1998. Maryland iMap. 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...

8. Bicycle map, City of Bloomington /prepared by the Bloomington Bicycle & Pedestrian Safety Commission.

1998. Bloomington Bicycle & Pedestrian Safety Commission (Bloomington, Ind.). "Fall 1998"--Panel.; Includes list of agencies to contact for further information and area bicycle shops.; On verso: Downtown Bloomington bicycle m...

9. C-11 Geologic atlas of Mower County, Minnesota [Part A]

1998. Mossler, J.H. 6 pls. Scale 1:100,000. Pl. 1, data-base; pl. 2, bedrock geology; pl. 3, surficial geology; pl. 4, depth to the pre-Cretaceous bedrock surface and ...

10. C-12 Geologic atlas of Goodhue County, Minnesota [Part A]

1998. Setterholm, D.R. 6 pls. Scale 1:100,000. Pl. 1, data-base; pl. 2, bedrock geology; pl. 3, surficial geology and thickness of Quaternary sediments; pl. 4, Quaternary...

11. DEM (30m), Wisconsin 1998

1998. United States Geological Survey (USGS). This Grid-format Digital Elevation Model (DEM) is a raster representation of land elevation of Wisconsin. This DEM (Ndemgw930N) is derived from the...

12. Digital Orthophoto Quadrangle (DOQ) Data: Illinois, 1998 - 2001

1998. U.S. Geological Survey. This is a collection of tile-by-tile NAPP-III DOQs (1998-2001) images in MrSID format for the state of Illinois, in UTM Zones 15 and 16, NAD83. Ort...

13. Fault Lines - Topographic Change During the Last Century: Philadelphia, 2000

1998. United States Geological Survey. A scope of work was developed in response to a request by the U. S. Army Corps of Engineers, Philadelphia District. The request was to perform a to...

14. Geologic map - Topographic Change During the Last Century: Philadelphia, 2000

1998. United States Geological Survey. A scope of work was developed in response to a request by the U. S. Army Corps of Engineers, Philadelphia District. The request was to perform a to...

15. Get out & go guide: trails, tours, & farm markets

1998. Includes index of cities.; Advertisements, "Harvest calendar" and descriptive indexes to "Roadside markets and u-pick farms", "Train Rides", "Drivi...

16. Map showing oil, gas, and gas storage fields in Indiana

1998. Cazee, J. T.(James T.), cartographer. "Compilation complete to December 1998."; "Base map digitized from 1978 U.S. Geological Survey map of Indiana. Scale 1:500,000." Scale 1:550,000.

17. Metropolitan Urban Service Areas (MUSA) - Historical (1995 - 1998): Metro Twin Cities, Minnesota

1998. Metropolitan Council. This layer contains boundaries of the Metropolitan Urban Service Area (MUSA) in the Twin Cities metropolitan area of Minnesota for each year from 1...

18. Networked streams of Pennsylvania: Pennsylvania, 1998

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...

19. NHDFlowline - Medium Resolution: Pennsylvania, 1999

1998. U.S. Geological Survey in cooperation with the U.S. Environmental Protection Agency. The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the sream segments or reaches that co...

20. NHDWaterbody - Medium Resolution: Pennsylvania, 1999

1998. U.S. Geological Survey in cooperation with the U.S. Environmental Protection Agency. The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the sream segments or reaches that co...