Pg. 4 (table 1), 6-7. Bridwell formation. Bedded, unconsolidated sand and clay with thick channel gravel occurring both at base and at higher levels; characteristically reddish brown; locally a few gray highly calcareous members, including caliche cap rock. Thickness at type locality 155 feet; locally pinches out against higher relief features on bed rock surface which extends well above upper level of Couch formation (new). Underlies Blanco formation. [Age is middle Pliocene.]
Typically exposed on Fowler Ranch, 10 mi north of Crosbyton, Crosby Co., western TX. Named from Bridwell Ranch in Blanco Canyon.

Source: US geologic names lexicon (USGS Bull. 1200, p. 477).

Pg. 49 (fig. 2), 51, 52. Bridwell formation. Quartzitic sand and fine gravel. Thickness 75 feet. Lies above Couch formation. Stratigraphic section (fig. 2) lists formation under heading Pliocene (and Miocene?). Recognized only on Llano Estacado.

Source: Publication; US geologic names lexicon (USGS Bull. 1200, p. 477).

Bridwell Member of Ogallala Formation. Not separately mapped. [Reduced in rank to member of Ogallala Formation. See entry under Ogallala.]

Source: Publication.