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Driftless Areas: Illinois, 2004

Attribute Value
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Creator:
Illinois State Geological Survey
Description:
This is a polygon feature class containing driftless areas in Illinois. These areas are analogous to areas of the state where the bedrock surface is not buried. Data are originally from the Buried Bedrock Surface map (1:500,000) by Herzog et al (1994) and the related feature class GISDB_BEDGEO.IL_Bedrock_Topography_1994_Ln. There are no attribute data associated with the spatial data in this data set. The nominal scale is 1:500,000.
Publisher:
University of Illinois Urbana-Champaign
Collection:
Academic Institutions Geospatial Data
Place:
Illinois, United States
Subject:
Geoscientific Information
Types:
Dataset and Service
Year:
1994
Contributed by:
Illinois
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