Scarcity of road material supplies in southwestern Iowa has led the State Highway Commission to make careful scrutiny of all rock outcrops and to investigate thoroughly any which show promise. One such exposure, in SE¼ SE¼ Section 27, Crescent Township, Pottawattamie County, was test pitted in 1935. The complete section, including test pits, was referred by Wood and Reed to the Westerville, Cherryvale and Winterset members of the Kansas City Stage of the Missouri Series. Another, at Logan (SE¼ NW¼ Section 19, Jefferson Township, Harrison County) was test pitted in 1934, the section being assigned by Wood2 to the Pennsylvanian without attempting a closer correlation. Core drilling at each of these locations in 1937 has extended the section downward and afforded a basis for more positive correlation.
Proceedings of the Iowa Academy of Science
©1938 Iowa Academy of Science, Inc.
Wood, Lyman W.
"Pennsylvanian Section at Crescent, and Logan, Iowa,"
Proceedings of the Iowa Academy of Science, 45(1), 143-147.
Available at: https://scholarworks.uni.edu/pias/vol45/iss1/29