1999 USGS National Elevation Dataset

Download Single File Interface Multi-file Download Tool Data Directory Related Links USGS Product Description

Dataset Basics

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
Compression: None
File Format:  ArcInfo Grid and Geotiff