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Illinois Base Data (IL_BASEDATA) Internet Map Service

The IL_BASEDATA map service is designed to be a public map service directly accessible by users of ESRI's ArcGIS softare. If you have suggestions to improve this map service for this use, please contact me at beavrsn@isgs.uiuc.edu. Thank you for your input. S. Beaverson, July 2, 2007.

Legend for the IL_BASEDATA Internet Map Service

VECTOR BASE DATA

Symbol Layer Description Metadata
Latitude and Longitude Latitude and Longitude Latitude and Longitude lines that transect Illinois. IL_CARTO_Lon_Lat_Grid_500K.html
Interstates Interstates Interstates and toll roads in Illinois IL_INFRA_ROADS_Interstate_Ln.html
U.S. Highways US Highways U.S. Highways in Illinois IL_INFRA_ROADS_US_Highways_Ln.html
State Routes State Routes Illinois state roads IL_INFRA_ROADS_State_Routes_Ln.html
County Boundaries County Illinois county boundaries IL_BNDY_County.html
USGS 7.5 Minute Quadrangle Index Quad Index of U.S. Geological Survey 7.5-minute quadrangle map series for Illinois IL_QUAD_24K_Index_Py_Nad83.html
PLSS Township and Range Boundaries Township Township and Range boundaries in the Illinois Public Land Survey System IL_PLSS_Township_Range.html
PLSS Section Boundaries Section Section boundaries in the Illinois Public Land Survey System IL_PLSS_Sections.html
Lakes and Streams Lakes and Streams Water bodies IL_Streams_From_100K_DLG_Ln.html
Municipal Boundaries Municipalities, 2000 Municipal boundaries in Illinois for incorporated places IL_ADMIN_Municipality_2000_Py.html
Municipal Boundaries Municipalities, 1990 Municipal boundaries in Illinois for incorporated places IL_ADMIN_Municipality_1990_Py.html

RASTER BASE DATA

Symbol Layer Description Metadata
n/a 2005 Chicago Urban Area 2005 Chicago Urban Area, Zone 16, NAD83. IL_CUA_2005_MOSAIC_UTM16_RAS.html
n/a 2005 Eastern DOQ Illinois Digital Orthophoto Quadrangle (DOQ) data in Universal Transverse Mercator, Zone 16, NAD83. IL_DOQ_2005_MOSAIC_UTM16_RAS.html
n/a 2005 Western DOQ Illinois Digital Orthophoto Quadrangle (DOQ) data in Universal Transverse Mercator, Zone 15, NAD83 IL_DOQ_2005_MOSAIC_UTM15_RAS.html
n/a 2004 Eastern NAIP DOQ Illinois National Agricultural Imagery Program (NAIP) Digital Orthophoto Quadrangle (DOQ) data in Universal Transverse Mercator, Zone 16, NAD83. IL_NAIP_2004_MOSAIC_UTM16_RAS.html
n/a 2004 Western NAIP DOQ Illinois National Agricultural Imagery Program (NAIP) Digital Orthophoto Quadrangle (DOQ) data in Universal Transverse Mercator, Zone 15, NAD83 IL_NAIP_2004_MOSAIC_UTM15_RAS.html
n/a 2001 Shaded Relief Illinois Shaded Relief IL_Dem_Shaded_Relief_30m.html
n/a 2001 Digital Elevation Model Illinois Digital Elevation Model il_dem_30m.html
n/a 2000 Des Plaines River Watershed Des Plaines River Watershed data in Illinois State Plane, East Zone, NAD83. IL_DPW_2000_1FT_MOSAIC_RAS.html
n/a LANDSAT LANDSAT imagery, date unknown. -
n/a 1999 Landcover Illinois Landcover data IL_LANDCOVER_1999_00_RAS.html
n/a 1998 Eastern DOQ Illinois Digital Orthophoto Quadrangle (DOQ) data in Universal Transverse Mercator, Zone 16, NAD83. IL_DOQ_NAPP3_MOSAIC_UTM16_RAS.html
n/a 1998 Western DOQ Illinois Digital Orthophoto Quadrangle (DOQ) data in Universal Transverse Mercator, Zone 15, NAD83 IL_DOQ_NAPP3_MOSAIC_UTM15_RAS.html
n/a 1995 Shaded Relief Illinois Shaded Relief IL_Dem_Shaded_Relief_301ft.html
n/a 1995 Digital Elevation Model Illinois Digital Elevation Model il_dem_301ft.html
n/a Statewide DRG US Geological Survey Digital Raster Graphic (DRG) images for Illinois IL_DRG_MOSAIC_24K_RAS.html
n/a Illinois Historic Aerial Photographs Illinois Historic Aerial Photographs from 1936 to 1941 for the Chicago region and for the St. Louis Metro East region. IL_HISTORICAL_AERIAL_UTM15_RAS.html
IL_HISTORICAL_AERIAL_UTM16_RAS.html