[2] The Sloan Canyon Formation consists of variegated reddish-brown, purple, and green mudstones, with some beds of siltstone and marl.

It rests on the Travesser Formation and is overlain by the Sheep Pen Sandstone.

[5] The formation is part of one of the largest continuously mapped Triassic vertebrate tracksites, with the earliest studied exposures at Peacock Canyon.

Ichnofossils (track fossils) include the archosaurs Brachychirotherium and Chirotherium, a possible therapsid, and the reptile Rhynchosauroides.

[6] The beds now assigned to this unit were previously mistaken for Morrison Formation.