Rock pocket mouse records in Utah are few, only 68, and every one comes from GBIF-linked survey data rather than iNaturalist, which tracks for a small, nocturnal rodent that sticks close to boulder fields and rocky slopes where it’s rarely seen. Grand Staircase-Escalante National Monument, the San Rafael Swell, and the Utah West Desert cover the state’s rugged, rock-strewn country that this species needs for cover and burrow sites among stone.
Nearly all of Utah’s records cluster in a single September spike, most likely one concentrated survey effort rather than a real seasonal pattern. Elsewhere in its range, this species is known for evolving coat colors that closely match the rock it lives on, from pale sandstone to dark volcanic stone.
NatureServe ranks it critically imperiled in Utah, its most serious state rank of any species in this group, even though its global rank sits at secure. That gap says Utah sits at the thin edge of a much larger range.
Full species profile
