[1] The formation consists of weakly consolidated sandstone and conglomerate, varying in color from light yellowish-brown to reddish-yellow or pink.

The lower beds sometimes contain white micritic carbonate pebbles interpreted as reworked caliche of the underlying Arroyo Ojito Formation.

[1] Well logs indicate that the Ceja thickens to more than 420 meters (1,380 ft) in the subsurface on the western margin of the Rio Grande valley, where it likely interfingers with the Sierra Ladrones Formation.

At Cat Mesa, the formation overlies a lava flow with a Ar-Ar age of 3.00 ± 0.01 Ma.

It forms a very poorly sorted mesa-capping gravel along Ceja del Rio Puerco.

[6] They raised the Ceja Member, which lay above the Rincones paleosurface, to formation rank,[5] a recommendation with which Connell subsequently concurred.