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Bedrock-surface altitude in the midwestern basins and arches region of Indiana, Ohio, Michigan, and Illinois

Water-Resources Investigations Report 93-4050

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Abstract

The Midwestern Basins and Arches Regional Aquifer-Systems Analysis (RASA) is one of 28 projects that were identified by Congress in 1978, after a period of severe drought, to be studied by the U.S. Geological Survey (Sun, 1984).  The Midwestern Basins and Arches RASA study area in parts of Indiana, Ohio, Michigan, and Illinois is defined by either the limestone-shale contact of rocks of Devonian age or by the contact of the land with surface-water bodies (fig. 1).

Study Area

Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Bedrock-surface altitude in the midwestern basins and arches region of Indiana, Ohio, Michigan, and Illinois
Series title:
Water-Resources Investigations Report
Series number:
93-4050
Year Published:
1993
Language:
English
Publisher:
U.S. Geological Survey
Description:
52.51 x 41.64 inches
Country:
United States
State:
Illinois, Indiana, Michigan, Ohio