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Mountains

Gunnison, Colorado

Gunnison County · Mountains · town

Gunnison sits in a valley where cold air pools so hard on clear winter nights that it earned a nationwide reputation as one of the coldest towns in the country — the thermometer once fell to 47 below on Christmas Day 1924.

Gunnison takes its name from John W. Gunnison, a U.S. Army captain in the Corps of Topographical Engineers who led one of the 1853 Pacific Railroad Surveys west across the Rockies, looking for a viable central route for a transcontinental line between the 38th and 39th parallels. His party crossed the high country of what is now Gunnison County — coming over Cochetopa Pass and down the river that now bears his name — before Gunnison himself was killed later that year, in October 1853, in an attack on the Sevier River in Utah Territory. The valley he passed through was long the summer range of the Tabeguache (Uncompahgre) band of the Ute people. After the Ute were removed to reservations following the Meeker conflict of 1879, the Gunnison Valley was opened to settlement, and a townsite grew up on the flats where the Gunnison River gathers its tributaries. The town of Gunnison was incorporated on March 1, 1880, and became the county seat.

What turned the young town into a hub was the railroad and the mining boom it carried. When the Denver and Rio Grande pushed its narrow-gauge line into Gunnison in 1881, the town became the supply and shipping center for a burst of silver, gold, and coal camps scattered through the surrounding mountains — Crested Butte, Pitkin, Ohio City, and others. The ore boom cooled within a few years, but two things gave Gunnison lasting staying power. One was ranching: the wide, grassy valley proved ideal for hay and cattle, and stock-raising eventually eclipsed mining as the county's economic backbone. The other was school — the seed of what is now Western Colorado University.

Western began as the Colorado State Normal School, chartered by the legislature in 1901 and opened to students in 1911 as the first college on Colorado's Western Slope, founded to train the region's teachers. It was renamed Western State College in 1923 as it grew into a four-year institution, and after decades of growth it became Western Colorado University in 2019. The university, with a few thousand students, still anchors the town and gives a small ranching-and-railroad county seat the feel of a college community. Today Gunnison is a year-round mountain town — a ranching valley, a university campus, and a jumping-off point for the Gunnison River, Blue Mesa Reservoir, and the high country all at once.

Life in Gunnison is built around the outdoors and the river. The Gunnison River runs right through the valley — the stretch around and just above town is Gold Medal trout water — and just downstream it widens into Blue Mesa Reservoir, the largest body of water in Colorado and a magnet for anglers and boaters. Three miles south of town, the BLM's Hartman Rocks Recreation Area spreads across more than 14,000 acres of sagebrush and granite, laced with miles of singletrack that make it a beloved mountain-biking, hiking, and climbing spot. Crested Butte and its ski resort sit a short drive up the valley. In town, Western Colorado University keeps things lively year-round, and the main street has the easy, unfussy feel of a working ranching community rather than a polished resort. It's a place where a weekend can mean casting for trout, riding the rocks, and driving up to the peaks — all before dinner.

Worth knowing

The honest heads-up is the cold. Gunnison sits in a high valley where cold air settles on clear winter nights, and it has a well-earned reputation as one of the chilliest towns in the country — the record low hit 47 below in 1924, and hard freezes are a normal part of winter. It also sits a fair drive from any big city, so you plan trips and stock up. But that same crisp, high-country climate is exactly what keeps the river cold and clear, the trails uncrowded, and the star-filled nights so quiet — it's just the trade for living in one of Colorado's genuine mountain valleys.

The practical side

Gunnison is a county seat inside a big, rural high-country county, so the layers that matter here are county-level: land-use and wildland-urban-interface wildfire code, well permits and water division, and city sales-tax/short-term-rental licensing. Whether a rule comes from the City of Gunnison or Gunnison County depends on which side of the city line you're on.

  • Confirm whether the parcel is inside the City of Gunnison or in unincorporated Gunnison County — the city and the county run separate zoning, permitting, and short-term-rental rules.
  • For short-term rentals in the city, check current City of Gunnison licensing (a sales-tax license is required, and the city has been developing a cap-based STR permit program); county STRs follow a separate zoning-based framework.
  • For rural or unincorporated property, verify well permits and water rights through the Colorado Division of Water Resources — most of the county sits in Water Division 4 (Gunnison River Basin).
  • Check the wildfire / wildland-urban-interface picture: Gunnison County enforces WUI building standards and defensible-space requirements in the interface (the county has been transitioning to Colorado's Wildfire Resiliency Code), so verify current rules with the county before building or buying in a rural area.
Tags: mountain-towncounty-seatwildfire-wuishort-term-rental

Local notes

More about Gunnison

See all Gunnison notes ->

Outdoors and wildfire

The Gunnison sage-grouse shapes life across the Gunnison Basin

The Gunnison sage-grouse is a federally listed bird whose sagebrush habitat covers much of the Gunnison Basin, and its protection touches land use and recreation here.

Outdoors and wildfire

Near Crested Butte, forest camping has moved to designated sites

In several drainages around Crested Butte, the national forest now limits camping to designated sites or established campgrounds rather than camp-anywhere dispersed use.

Cars and driving

Black Canyon's two rims do not connect by road

Black Canyon of the Gunnison National Park has a South Rim and a North Rim, but no bridge or road links them, so driving from one to the other is a long trip on outside roads.

Local rules

Building in sage-grouse habitat can mean an early talk with the county

In mapped Gunnison sage-grouse habitat, Gunnison County requires a pre-application conference for certain land-use projects and lets owners request one before building or septic permits.

Cars and driving

Some Gunnison County passes close for the whole winter

Several high routes around Gunnison County, including Kebler and Cottonwood passes, close seasonally for winter, so summer shortcuts are not year-round roads.

Water and land

The Gunnison River through Black Canyon has special fishing rules

The Gunnison River through Black Canyon is Gold Medal and Wild Trout water with flies-or-lures-only rules, catch-and-release for rainbow trout, and a no-fishing zone in the first 200 yards below Crystal Dam.

Local rules

Crested Butte and Mt. Crested Butte are two separate towns

Crested Butte and Mt. Crested Butte are two distinct incorporated towns in Gunnison County, with their own governments and rules, even though their names are nearly the same.

Outdoors and wildfire

Motorboats on Blue Mesa need an inspection before launch

To keep out invasive zebra and quagga mussels, motorized and trailered boats must pass an aquatic-species inspection before launching at Blue Mesa Reservoir in Curecanti.

Sources and review

Where this information comes from

Colorado Porch gives the short version, then points back to the official source for the rule that matters.

Data used
Colorado state and local-rule source set
Last reviewed
June 2026

Use this carefully: Colorado local rules vary by municipality, county, special district, and home-rule jurisdiction. Confirm the address, not just the town name.

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