Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

Statewide 30-Meter Shaded Relief Image: Illinois, 2006

Authors:
, , and
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:
Illinois, United States
Subjects:
Elevation and Imagery and Base Maps
Year:
2003
Contributed by:
Illinois
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