Pg. 8 (fig. 2), 9. Creal Springs sandstone of Tradewater group. Sandstone overlying Upper New Burnside coal and immediately underlying Curlew limestone. Name credited to P.E. Potter (unpub. ms., 1957). Age is Pennsylvanian.
Exposed in vicinity of Creal Springs, in T. 10 S., R. 3 E. Johnson Co., southern IL.
Source: US geologic names lexicon (USGS Bull. 1200, p. 978).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
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