1999 USGS National Elevation Dataset
The USGS National Elevation Dataset (NED) has been developed by merging the highest-resolution, best-quality elevation data available across the United States into a seamless raster format. NED is the result of the maturation of the USGS effort to provide 1:24,000-scale Digital Elevation Model (DEM) data for the conterminous.
University Information Technology Services (UITS) purchased Indiana NED for public download May 14, 2002.
The USGS provided Indiana NED on 2 CDROMs. Data on each CDROM was converted to a tar archive and transferred to the massive data storage system. Metadata is included in each tar archive.
Coordinate System: UTM NAD83
Vertical Datum: NAVD88
Pixel Resolution: 30 Meter
File Format: ArcInfo Grid and Geotiff