Geology and groundwater resources of western Crawford County, Pennsylvania

Water Resource Report 46
Prepared by the United States Geological Survey, Water Resources Division, in cooperation with the Pennsylvania Geological Survey
By:  and 



Western Crawford County is in northwestern Pennsylvania. The project area is 15 to 20 miles south of Lake Erie and is bordered on the west by Ohio. Drift of Pleistocene age (Wisconsinan Age) covers most of the area, which is a maturely dissected plateau. The drift in the upland area is mostly till, which ranges in thickness from 0 to 25 feet. In the large stream valleys and deep buried valleys the drift is as much as 500 feet thick. The bedrock was mapped in detail and consists of rocks of Devonian, Mississippian, and Pennsylvanian age. Devonian rocks underlie the entire area and form the bedrock surface in most of the northern one third of the area and in the deep bedrock valleys. Mississippian formations underlie the uplands in the southern two thirds of the area; these are capped by thin remnants of Pennsylvanian rocks and knobs near the south edge of the area.

Study Area

Publication type Report
Publication Subtype State or Local Government Series
Title Geology and groundwater resources of western Crawford County, Pennsylvania
Series title Water Resource Report
Series number 46
Year Published 1979
Language English
Publisher Pennsylvania Geological Survey
Contributing office(s) Water Resources Division
Description vii, 103 p.; Maps: 3 Sheets
Country United States
State Pennsylvania
County Crawford County
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