Legion shale member of Grenola formation. The newly established Grenola formation is divided into following members (descending): Neva limestone, Salem Point shale, Burr limestone, Legion shale, and Sallyards limestones. The Legion shale is largely gray argillaceous shale with few fossils in the north, becoming nearly black at top north of Manhattan and at Elmdale, Kansas. In central and southern Kansas, it is indurated and more calcareous locally, with numerous pelecypods, some brachiopods, crinoids, bryozoans, etc. In Oklahoma, it grades into red, sandy shale. Thickness 4 to 8 feet. Report includes measured sections.
Type locality: cuts on US Hwy 40, just southwest of American Legion Golf Club grounds, Riley Co., eastern KS. Named from American Legion Golf Club grounds and buildings, about 1.75 mi southwest of Manhattan, eastern KS.

Source: US geologic names lexicon (USGS Bull. 896, p. 1165); supplemental information from GNU records (USGS DDS-6; Denver GNULEX).

Pg. 8. Legion shale member of Grenola limestone formation of Council Grove group. Green platy shale exposed 1 mile southwest of Salem. Thickness 6 feet. Kansas Geol. Survey correlates Legion shale and underlying Sallyards limestone with Roca shale formation. Age is considered Permian (lower part of Big Blue). [See also under Roca.]

Source: Publication; US geologic names lexicon (USGS Bull. 896, p. 1165, Roca entry p. 1823); GNC KS-NE Pennsylvanian Corr. Chart, sheet 2, Oct. 1936.