The rock pocket mouse is a small rodent of rocky areas in the southwestern United States and northwestern Mexico. Its back is grey-brown, its underside is white, and its tail has a tuft at the tip.
The back is grey-brown, the sides have pale orange-brown lines, and the underside is white. Its long tail has a tuft at the tip.
It is nocturnal and mainly eats seeds. It carries seeds in its cheek pouches and may enter torpor during cold periods.
An extinction-risk assessment has not been added yet.