Description: State Boundary, 1998 (1:24,000) - Shows the state boundary, as a line feature, derived from the 7.5-Minute digital raster graphic (DRG) series maps of the U.S. Geological Survey (USGS). The state boundary is part of the Congressional Survey system, also known as the Public Land Survey system. Digitized by personnel of the Indiana Geological Survey.
Description: Impervious Surfaces Change, 2001 to 2006 (30-meter Grid) - Shows 2001 to 2006 changes in impervious surfaces in Indiana. This grid is a subset of the National Land Cover Database (NLCD 2006) suite of data products. NLCD 2006, amended version was released on October 10, 2014, and was produced through a cooperative project conducted by the USGS Multi-Resolution Land Characteristics (MRLC) Consortium. There are 17 categories of land use shown in this data set.The pixel attributes are assigned only to pixels where changes in impervious surface classification between 2001 and 2006. This land cover classification was achieved by using a combination of Landsat imagery and ancillary data.