Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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1.
Raster

Public Land Survey API Service: Minnesota

2015. Minnesota Geospatial Information Office. The PLS (public land survey) API (application programming interface) service provides public land survey descriptions, UTM coordinates, and some pl...

2.
Raster

Orthoimagery (WROC) Wood County, Wisconsin, 2015

2015. Wood County Land Information Office. Ayres Associates provided Wood County, Wisconsin with digital, color orthoimagery services in 2015 as part of WROC. The aerial imagery was collecte...

3.
1:100k Digital Raster Graphic - Collars Removed: Minnesota

1:100k Digital Raster Graphic - Collars Removed: Minnesota

2015. U.S. Geological Survey (USGS) and Minnesota Department of Natural Resources (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...

4.
Aerial Imagery: Hennepin County, Minnesota, 2015

Aerial Imagery: Hennepin County, Minnesota, 2015

2015. Hennepin County Geographic Information Systems. True color aerial orthophotography of Hennepin County captured during the spring of 2015.

5.
Raster
6.
Raster

Aerial Photography 2015: Philadephia, Pennsylvania

2015. Philadelphia aerial photography.

7.
Aerial Photography: Dakota County, Minnesota, 2015

Aerial Photography: Dakota County, Minnesota, 2015

2015. Dakota County. Low level (6-inch) aerial photography for Dakota County flown in Spring 2015.

8.
Aquifer sensitivity in shallow aquifers: Indiana

Aquifer sensitivity in shallow aquifers: Indiana

2015. Indiana Geological Survey. Aquifer_Sensitivity_Near_Surface_IN is a raster data layer that displays a reclassified raster data layer of estimated rates of diffuse groundwater...

9.
Bedrock Surface Elevation DEM : Indiana

Bedrock Surface Elevation DEM : Indiana

2015. Indiana Geological Survey. BEDROCK_SURFACE_DEM_100M_IGS_IN.TIF is a digital elevation model (DEM) in TIFF format that shows the elevation of the bedrock surface in Indiana, w...

10.
Digital Orthoimagery, Carlton County, Spring 2015, 9-inch Resolution: Minnesota

Digital Orthoimagery, Carlton County, Spring 2015, 9-inch Resolution: Minnesota

2015. Carlton County and Pictometry International Corporation. Pictometry flew 9-inch, leaf-off, color orthoimagery across Carlton County, Minnesota during the spring of 2015.

11.
Raster

Digital Orthoimagery, Twin Cities, Spring 2010, 1-ft Resolution: Minnesota

2015. Minnesota Department of Natural Resources, Metropolitan Council, Surdex Corporation. This dataset contains leaf-off 4 Band, red, green, blue, infrared (RGBI) digital orthophoto imagery of Anoka, Carver, Dakota, Hennepin, Ramsey, Sco...

12.
Groundwater recharge rates to shallow aquifers: Indiana

Groundwater recharge rates to shallow aquifers: Indiana

2015. Indiana Geological Survey. Aquifer_Recharge_Near_Surface_IN is a raster data layer that displays the results of a regression analysis to determine the estimated rate of diffu...

13.
Raster

Historical Aerial Photographs Online (MHAPO): Minnesota

2015. John R. Borchert Map Library, University of Minnesota and Minnesota Department of Natural Resources (Minnesota Department of Natural Resources (DNR)). The points in this dataset represent the approximate geographic location of the centroids for scanned, non-georeferenced air photos that were captu...

14.
Raster

Imagery 2015 - Tile Index: Allegheny County, Pennsylvania

2015. Tile Index - Orthophotos of Allegheny County, Pennsylvania - An orthoimage is remotely sensed image data that has been positionally corrected for c...

15.
Raster

Imagery 2015: Allegheny County, Pennsylvania

2015. Orthophotos of Allegheny County, Pennsylvania - An orthoimage is remotely sensed image data that has been positionally corrected for camera lens di...

16.
Raster

Land Use: Camp Ripley and Beltrami Island State Forest, Minnesota

1996. Minnesota Department of Natural Resources (DNR). This data set covers two areas of Minnesota that had not been included in other recent land use inventories. Camp Ripley is a military reservation...

17.
Raster

LiDAR DEM Wood County, Wisconsin, 2015

2015. Wood County Land Information Office. Ayres Associates provided Wood County, Wisconsin, with lidar based topographic mapping services in the spring of 2015 as part of WROC. The LiDAR da...

18.
Raster

LiDAR-Derived Aspect in Meters, Statewide, Maryland iMap: Maryland, 2015

2015. Maryland Department of Information Technology. This statewide product was created and will continue to be maintained by the Eastern Shore Regional GIS Cooperative (ESRGC). It's a comprehensive m...

19.
Raster

LiDAR-Derived Aspect, Maryland iMap: Baltimore County, Maryland, 2015

2015. Maryland Department of Information Technology. Aerial Cartographics of America (ACA) collected 750 square miles covering Baltimore County. The nominal pulse spacing for this project was 1 point ...

20.
Raster

LiDAR-Derived Aspect, Maryland iMap: Baltimore, Maryland, 2015

2015. Maryland Department of Information Technology. This task is for a high resolution data set of lidar covering approximately 1,845 square miles. The lidar data was acquired and processed under the...