Driftless Areas in Illinois

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Abstract: This is an Arc/Info polygon data set 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 ISGS Arc*path_name_suppressed*/bedtopo.
There are no tabular data associated with the spatial data in this data set.
The nominal scale is 1:500,000.

Purpose: Appropriate applications are regional or statewide studies, preferably at a
scale of 1:500,000. These data can be used in conjunction with buried bedrock
surface, loess, glacial boundary, and drift thickness information to
demonstrate various aspects of the unglaciated portions of Illinois.


Most recent updates to the data:

Edition 1.0 of these data were reviewed for internal logical consistency in
June, 1998. As a result, tics were replaced, and COVER-ID values were
recalculated to be unique. See logical consistency report and process steps for
May, 1998 for more details. The updated data set (this one) is edition 1.1.
Related URL
Description: Data available in Arc/Info export format.

Description: FGDC metadata on Driftless Areas in Illinois.
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Caption:  Driftless Areas in Illinois
Geographic Coverage
Spatial coordinates   
  N: 42.0   S: 37.0   E: -87.0   W: -90.0

Data Set Citation
Dataset Originator/Creator: Illinois State Geological Survey
Dataset Title: Driftless Areas in Illinois
Dataset Series Name: ISGS GIS Database
Dataset Release Date: 1994
Dataset Release Place: Champaign, Illinois
Dataset Publisher: Illinois State Geological Survey
Version: 1.0
Issue Identification: driftless
Data Presentation Form: map
Paleo Temporal Coverage
Access Constraints none
Use Constraints Reproduction or redistribution of copyrighted digital data sets
or products derived therefrom outside of licensees'
organization or entity is expressly forbidden. The only
exception is redistribution to consultants working for the
licensee, and then only for purposes, related to work for the
licensee. Such consultants may not further ... View entire text
Data Set Progress
Originating Center
Data Center
Geological Survey, Dept. of Natural Resources, Illinois Supplemental Info
Data Center URL: http://www.isgs.uiuc.edu/

Data Center Personnel
Phone: 217-333-5102
Fax: 217-333-2830
Email: denhart at nomad.isgs.uiuc.edu
Contact Address:
615 East Peabody Drive
City: Champaign
Province or State: Illinois
Postal Code: 61820
Country: USA
Distribution Media: Online
Distribution Size: 241KB
Distribution Format: Arc/Info export format
Fees: No fees
Phone: 217-244-2510
Fax: 217-333-2830
Email: stiff at geoserv.isgs.uiuc.edu
Contact Address:
Illinois State Geological Survey
615 East Peabody Drive
City: Champaign
Province or State: Illinois
Postal Code: 61820
Country: USA
Extended Metadata Properties
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Creation and Review Dates
Last DIF Revision Date: 2009-03-26
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