The rock bluff was visited in the 1957–58 season by the Darwin Glacier Party of the Commonwealth Trans-Antarctic Expedition, 1956–58.

[1][2] Fault Bluff is a paleontologically important outcrop of the Aztec Siltstone that has yielded abundant fossils of Devonian vertebrates, including Bothriolepis and Groenlandaspis (armored placoderm fishes) and scales of an extinct lobe-finned fish.

The bone beds have yielded complete fish spines and bony plates.

[3] Fault Bluff' is the type locality for the phyllolepid placoderms, Austrophyllolepis quiltyi and Placolepis tingeyi.

[4] This outcrop of the Aztec Siltstone continues along a low ridge associated with Fault Bluff that has the equally important and fossiliferous Fish Hotel vertebrate fossil site at its end.