Kaibabs

The Kaibabs were a tribe of the Grand Canyon, drawing their name from the Kaibab Plateau on the northern rim of the Grand Canyon.

Background
The Kaibabs were one of the tribes inhabiting the Grand Canyon, and were the second to be folded into the nascent Caesar's Legion. Caesar demonstrated to the Kaibabs the fate that would befall his enemies, showing them the Ridgers' village and the corpse mounds made from their numbers. Witnessing men, women, and children piled up, ruthlessly massacred, the Kaibabs were terrified and quickly swore fealty to their new master.

Behind the scenes
Kaibab is another name typically given to agave plants found around the Arizona region. This type of agave also goes by other names, such as Utah agave and Nevada agave, the latter of which can be found in-game.

Appearances
The Kaibabs are mentioned only in Fallout: New Vegas.