Washington County Sec. 25, T. 1 S., R. 4 E

In the bluffs one-half mile northeast of Spence Siding an the U.P.R.R. Measured By M. K. Elias, Date 1932 Remarks: V - 24. The thickness of these members are given as measured by Condra and Upp, 1931, p. 65.

Unit No. Description Thickness   Hollenberg limestone member   10 Limestone--yellow, bedded, fossiliferous 3.5 ft.   Pearl shale formation   9 Shale--bluish gray and red 39 ft.   Nolans limestone formation     Herrington ls member   8 Limestone--lt-buff, massive 8 ft. 7 Limestone--lt-buff, with num fossils: Myalina, Aviculoides, Myalina permiana, Aviculopecten, Pseudomonotis, Pleurophorus .5 ft.   Paddock shale member   6 Shale--greenish to gray 13 ft.   Krider limestone member   5 Mudstone--light-gray, with Myalina and Pinna 1 ft. 4 Shale--gray, some pelecypods near top 3.5 ft. 3 Limestone--gray, breaking in large slabs (with Orbiculoidea, after Condra and Upp, 1931, p. 66) 1 ft.   Odell shale formation   2 Shale--gray 2.6 ft. 1 Shale--red 5 ft.