Short description: Wreford (Threemile limestone) Limestone and upper Speiser Shale exposed in road cuts on both sides of Kansas Highway 57 and Alternate U.S. Highway 40 on the east side of bridge over Smoky Hill River; base of Threemile limestone is best exposed on north side of highway at 335 m (1099 ft); two digital photos, one on south side of highway and one on north side; just north and west of east line of NW1/4, NE1/4, Sec. 7, T.12S., R.6E., Geary Co., Kansas.
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