EarthWorks Geospatial Catalog

Statewide 30-Meter Shaded Relief Image: Illinois, 2006

Author(s)
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Description
This is a shaded relief image of Illinois in ArcSDE raster format. The data are stored in UTM coordinates, using a Transverse Mercator projection with the parameters of UTM Zone 16, NAD27. The data have a 30-meter ground resolution. The source DEM is a mosaicked model of USGS 30x30 meter DEMs, showing 1:24,000-SCALE quadrangle map boundaries that extend in an irregular buffer outside the state boundary. The source DEM is stored in the ISGS GIS database as GISDB.IL_DEM_30M_RAS.
Collection
Illinois Geospatial Data Clearinghouse
Place(s)
Illinois, United States
Subject(s)
Elevation and Imagery and Base Maps
Year
2003
Held by
Illinois
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