The Mogollon vole reaches Arizona at the northwestern edge of its range, a stocky, short-tailed rodent of wet mountain meadows that most people know only from the roofed grass runways it shaves through the sedge. It is genuinely hard to document: Arizona holds 689 occurrence records, but only 10 of them are photographs, with the rest coming from survey captures and museum specimens rather than the trail cameras and phone snapshots that carry more visible species.
High meadows on the Colorado Plateau
The Arizona record runs almost entirely through Coconino and Apache counties, tracing the Colorado Plateau, the San Francisco Peaks, and the White Mountains. Elevation and moisture, not just altitude, decide where it lives. It needs dense grass and sedge overhead, enough soil moisture to keep that cover green through summer, and a canopy open enough for grass to grow thick at ground level, a combination that sits inside the ponderosa and mixed-conifer belt. Where a meadow dries out or closes in under encroaching conifer, the vole disappears with the grass.
Read the runway, not the animal
The vole is active all year and does not hibernate, working the same shaved runways under winter snow that it uses in the growing season. What a hiker actually finds is the architecture: narrow cropped paths at the base of grass clumps, small piles of clipped stems, and fresh droppings. Numbers swing hard from year to year, climbing after a wet monsoon and mild winter and crashing after a dry, cold one, a boom-and-bust rhythm that feeds long-tailed weasels, hawks, owls, and snakes in step with the vole’s own good and bad years.
Status in Arizona
The Mogollon vole is native to Arizona and ranked S3 (vulnerable) by NatureServe in the state. Because it depends on a narrow band of moisture and elevation, its risks are habitat-based: overgrazing of moist meadow, conifer encroachment after decades of fire suppression, and the drying of the small mountain springs and seeps that sustain its most isolated populations.
Full species profile
