Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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1. Shaded Relief map: Illinois, 2006

1995. Abert, Curtis C. This raster dataset shows the landforms of Illinois with a shaded relief portrayal. Cell size is 301 feet and nominal map scale is 1:250,000. The d...

2. Density of sinkholes per square kilometer in southern Indiana and Kentucky, Derived from the 2011 Sinkhole Inventory: Indiana, 2011

2011. Indiana Geological Survey (IGS), United States Forest Service (USFS), Center for Geospatial Data Analysis (CGDA), and Sally L. Letsinger (data compiler). This raster file was created to display in a geographic information systems (GIS) the density in square kilometers of mapped and modeled (indirectl...