In the right bank of the west branch of Pine Creek, a short distance north from where it leaves section thirty-four in range one west, township seventy-seven north, there is a pebbly sandstone, unlike the coal measure conglomerate in the surrounding country. This sandstone is mostly brown in color, changing to yellow. It has a rather coarse texture, compared with the coal measure rocks, and is somewhat more variable in this respect. The best exposure appears in a small gully, which comes down the hill from the west, some twenty rods north of the south line of the section. In all a thickness of about sixteen feet is seen.
Proceedings of the Iowa Academy of Sciences
©1898 Iowa Academy of Science, Inc.
Udden, J. A.
"The Pine Creek Conglomerate,"
Proceedings of the Iowa Academy of Science, 6(1), 54-63.
Available at: https://scholarworks.uni.edu/pias/vol6/iss1/11