Oklahoma’s open databases hold no northern rock mouse records dated 2000 through 2026. Older specimen records place the species in Cimarron County, at the far tip of the Panhandle, and that’s no accident. The mesa country there is the only corner of Oklahoma with the habitat this mouse requires, rugged slopes of boulders, cliffs, and rock outcrops, and it marks the eastern edge of a range that belongs mostly to the Southwest.
NatureServe ranks the mouse S3, vulnerable in Oklahoma, and its position is genuinely narrow: one county, one landform, one population cut off from the rest of the species. The upside is that Black Mesa’s rock country is largely protected. If the northern rock mouse has a long-term Oklahoma home, this is it.


