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Driftless Areas in Illinois
Entry ID:
IGDNR_DRIFTLESS
Summary
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. Supplemental_Information: 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
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
Chrono Unit:
Location Keywords
Science Keywords
ISO Topic Category
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 ... ![]() Data Set Progress
COMPLETE
Originating Center
Data Center
Distribution
Distribution Media:
Online
Distribution Size:
241KB
Distribution Format:
Arc/Info export format
Fees:
No fees
Personnel
Role:
DIF AUTHOR
Role:
TECHNICAL CONTACT
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
U.S.A.
City:
Champaign
Province or State:
Illinois
Postal Code:
61820
Country:
USA
Creation and Review Dates
Last DIF Revision Date:
2009-03-26
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