Short description: Wreford (Threemile limestone) Limestone exposed in road cut on east side of Humboldt Creek Road just south of bridge over drainage, with base of Threemile limestone at 390 m (1280 ft); one digital photos; near center of SW1/4, NE1/4, SW1/4, Sec. 21, T.12S., R.7E., Geary Co., Kansas.
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