Marshall County Sec 25, T. 3 S, R. 8 E.

South of center SW 1/4 sec 33 Measured by M.K. Elias, 1932 Remarks: III-9
	Unit No. Description Thickness ft.   Schroyer limestone member   7 Flint 1 6 Limestone with two flint bands; Composita, Juresania, Dictyoclostus, Myalina (?), Bryozoa 2   Havenvilel shale member   5 Shale, calcareous 2 4 Mudstone with allorisma 1 3 Shale, calcareous 2 2 Mudstone, with calcite geodes 4.5 1 Shale, calcareous 2