Named [probably] for Keechi Creek, west of Mineral Wells, Palo Pinto Co, TX on Bend arch. No type locality designated. Is "typically exposed" along Keechi Creek, west of Mineral Wells, and the Brazos River below the bridge on the Palo Pinto-Graford road. Is a [member] of newly named Mineral Wells formation, uppermost formation of Strawn group (revised) in the Brazos River Valley area, north-central TX on Bend arch. [Not recognized in Colorado River Valley, where Strawn is undifferentiated--beds of Drake (1893) are used there.] Overlies Turkey Creek sandstone and shale [member] (new) of Mineral Wells formation. Consists of a series of light-gray, cross-bedded, calcareous sandstones and light-gray sandy shales. Present in the escarpment below the Palo Pinto limestone of Canyon group. These beds may be seen at almost any point along the escarpment of the Palo Pinto limestone where not covered by talus. Total thickness is 100-150 ft. Measured section. Correlation chart. Pennsylvanian age.

Source: GNU records (USGS DDS-6; Denver GNULEX).