Chase County Sec. 30, T. 19 S., R. 9 E

Section on Cottonwood River in Southwest 1/4, beginning about 300 feet East of bridge. Measured By Swain, 8/1940 Huge blocks of Glenrock limestone covere South bank of river
	Unit No. Description Thickness 10 Concealed above up slope to west   9 Limestone and calcareous shale, light gray, platy dense, argillaceou, with brown gastropod coquina at base. Correspods to well jointed platy bed in Neva at Elmdale? 3 ft. 8 Shale, olive brown, fissile, calcareous, with a rich fauna, with (a) Neospirifer 3 ft. 7 Limestone, light gray and dark gray to almost black, thick bedded, argillaceous, pelecypod limestone, and calcareous shale 15.5 ft. 6 Shale or siltstone, light brown, fissile, play, calcareous, 3 feet thick just beneath unit above, otherwise concealed 31 ft. 5 Limestone, light gray, very thick bedded to massive, somewhat brecciated, marine fauna 6 ft. 4 Shale, medium to light gray, calcareous, thick laminated, tough, becoming more limy at top and grading into overlying limestone 1.5 ft. 3 Shale, light lavender gray, thick lamination, Orbiculoidea, Lingula, and pelecypoda. Coquina at base 0.5 ft. 2 Shale, olive brown, to dark gray, mottled clay 0.5 ft. 1 Limestone, light gray, dense, laminated 10 feet above present river level 0.4 ft.
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