Are There Voles in Colorado?
Yes, voles are common throughout Colorado in montane, subalpine, and alpine regions. Multiple vole species thrive across Colorado's diverse elevations from foothill grasslands to high mountain meadows. These small rodents are crucial members of Colorado's food webs, serving as primary prey for raptors and carnivores.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 22, 2026.
California Vole · Cricket Raspet CC BY
Woodland Vole · Violet T. CC BY
Eastern Meadow Vole · rubyheron CC BY-ND
- 6,587
- GBIF records
Yes, voles are in Colorado. Next you'll want:
Yes, voles are common throughout Colorado in montane, subalpine, and alpine regions. Multiple vole species thrive across Colorado's diverse elevations from foothill grasslands to high mountain meadows. These small rodents are crucial members of Colorado's food webs, serving as primary prey for raptors and carnivores.
Where in Colorado Voles Are Found
Voles are widespread across Colorado in suitable habitats from the foothills to alpine tundra. The Front Range from Boulder south to Colorado Springs supports abundant vole populations in meadows and grasslands. The San Juan Mountains in southwestern Colorado harbor vole populations in high-elevation meadows and forests. The Sawatch Range including areas around Mount Elbert supports vole areas. The Maroon Bells region near Aspen provides excellent vole habitat. The White River Plateau in northwest Colorado contains healthy vole populations. The Uncompahgre Plateau in the southwest supports voles in suitable habitats. The Rocky Mountain National Park area contains extensive vole populations in montane and subalpine zones. Voles are absent only from the driest valleys and the highest alpine peaks above vegetation. The Cache la Poudre River drainage supports riparian vole populations. Learn more about Colorado's diversewildlife areasby elevation and region.
Season and Timing in Colorado
Colorado voles are active year-round with no hibernation despite harsh mountain winters. High elevation populations remain active under deep snowpack in protected burrows and runways. Spring snowmelt in Colorado mountains triggers breeding activity as vegetation emerges. Peak breeding occurs in late spring and early summer as food becomes abundant. Population peaks typically occur in late summer and fall as multiple generations mature. Late summer and early fall show highest vole densities before natural population crashes. Winter populations remain stable in protected habitats despite extreme cold and snow. Spring and fall migrations may occur as vole populations shift between elevation zones. Drought years reduce vole populations as vegetation stress limits food availability. Wet years with abundant spring moisture favor population growth and expansion. Individual Colorado vole populations can fluctuate dramatically between seasons based on predation and food. For more on vole in Colorado, see ourColorado vole guide.
How to Identify a Vole
Colorado voles range from four to seven inches long including short tails. They have stocky, compact bodies with rounded heads and small ears usually hidden in fur. Fur color varies from brown to reddish-brown depending on species, elevation, and season. High elevation populations show adaptation to harsh conditions with dense fur. Eyes are tiny and frequently concealed in fur. Voles have distinctive high-crowned molars for grinding tough plant material. Male and female voles look similar though males may average slightly larger. Mountain populations are generally larger than foothill populations. Seasonal coat changes occur with winter pelage being thicker and darker. Vole droppings are small, dark, rice-shaped pellets found throughout burrow systems. Burrow entrances are typically three-eighths to one-half inch in diameter, visible in soft soil. You can also browseColorado wildlife.
Where Sightings Concentrate in Colorado
Voles concentrate in wet meadows and grasslands throughout Colorado's mountains. Alpine meadows above 10,000 feet in the high ranges support significant vole populations. Subalpine zones between 8,000 and 11,000 feet provide excellent vole habitat with suitable vegetation. Montane meadows in the 6,500 to 9,000 foot zone harbor healthy vole areas. Riparian areas along Colorado's mountain streams and rivers provide linear habitat corridors. Wetland areas with sedges, rushes, and sphagnum moss support concentrated populations. Areas recovering from fire or timber harvest often develop productive vole populations. Restored wetland and prairie areas frequently attract voles within one to two seasons. Old fields transitioning to shrubland support transitional vole populations. Pastures in mountain valleys provide secondary habitat for voles. Explore Colorado'swildlife habitatsand species distributions by elevation.
Typical Vole Behavior
Colorado voles are herbivorous rodents feeding on grasses, sedges, roots, bulbs, and bark. They are most active during twilight and night hours, though they forage throughout the day in protected areas. A single vole consumes roughly 25 percent of its body weight daily in plant material. Voles are burrowing animals that create extensive tunnel networks called runways just below the soil surface. They are social animals living in family groups with overlapping home ranges. Voles are surprisingly vocal, producing high-pitched squeaks and ultrasonic calls for communication and territory defense. Breeding occurs from spring through fall with females producing three to five litters per year. Litter size ranges from three to six pups with an average of four. Colorado voles show dramatic population cycles lasting multiple years. Hawks, owls, martens, foxes, coyotes, and snakes are primary predators that regulate vole populations.
Coexistence and Safety Notes
Voles pose no threat to humans and are completely harmless animals. They do not bite, scratch, or carry rabies or serious diseases. In outdoor settings, voles benefit ecosystems by aerating soil and serving as prey for raptors and carnivores. Voles are not protected by special regulations in Colorado, though they play critical ecological roles. In gardens or landscaping, voles rarely cause significant damage due to Colorado's dry climate and limited suitable habitat. Removing dense vegetation and wet areas discourages vole presence. Providing habitat for vole predators like hawks and owls naturally controls populations. Voles are used by wildlife researchers and raptor specialists as food for research and education. Encountering live voles is uncommon for most Colorado residents in low elevation areas. If found indoors, release voles gently outside in suitable mountain habitat. Voles are important members of Colorado'swildlifefood webs and ecosystems.
Common Species People Confuse with Voles
Shrews are frequently mistaken for voles but have pointed snouts and smaller eyes. Shrews are insectivorous rather than herbivorous and occur throughout Colorado mountains. House mice and meadow mice cause occasional confusion but have larger ears and longer tails. White-footed deer mice have bicolored tails and larger eyes than voles. Pikas are larger lagomorphs found in alpine areas, not true rodents. Ground squirrels are much larger than voles with bushy tails. Chipmunks are larger and more colorful. Yellow-bellied marmots are massive compared to voles. Pocket gophers are much larger with external cheek pouches and create cone-shaped soil mounds. Moles do not occur in Colorado, so confusion is minimal. Consulting field guides forColorado wildlifehelps clarify species identification.
Frequently Asked Questions
Q: Are voles dangerous to humans in Colorado? A: No, voles are completely harmless and do not bite, scratch, or transmit diseases to people. Q: When do voles breed in Colorado mountains? A: Voles breed from spring through fall with peak breeding occurring June through August in high elevations. Q: How can I identify vole activity on my Colorado property? A: Look for small surface-level runways in grass and vegetation, and tiny one-half inch diameter burrow holes in soft soil. Q: What eats voles in Colorado? A: Red-tailed hawks, northern harriers, short-eared owls, pine martens, foxes, and bullsnakes are primary vole predators in Colorado.
Plan your vole sighting in Colorado
6,587 verified vole records have been logged in Colorado, most recently in 2026. See the GBIF records.
Where to look in Colorado
- Bent's Old Fort National Historic Site · Wildlife Watching, Birdwatching · Find hotels
- Black Canyon Of The Gunnison National Park · Wildlife Watching, Birdwatching · Find hotels
- Colorado National Monument · Wildlife Watching · Find hotels
- Curecanti National Recreation Area · Wildlife Watching, Birdwatching · Find hotels
- Dinosaur National Monument · Wildlife Watching, Birdwatching · Find hotels
- Great Sand Dunes National Park & Preserve · Wildlife Watching, Birdwatching · Find hotels
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