Fort Hays Limestone Member

Fort Hays Limestone Stratigraphic range: Cretaceous
Fort Hays Limestone quarry at Cedar Bluff State Park, Kansas, USA.
Type	Formation Member
Unit of	Niobrara Formation of the Colorado Group
Underlies	Smoky Hill Chalk Member of the Niobrara Formation
Overlies	Carlile Formation (non-conformably)
Lithology
Primary	Limestone
Other	Shale partings
Location
Region	mid-continental: Colorado, Kansas, Nebraska
Country	United States
Type section
Named for	Fort Hays
Named by	S. W. Williston
Location	Hogback ridge just west of old Fort Hays, Kansas
Year defined	1893

The Fort Hays Limestone is a member of the Niobrara Formation of the Colorado Group exposed in Colorado, Kansas, and Nebraska and is named for the bluffs near the old Fort Hays, a well-known landmark in western Kansas.