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Gallatin Canyon: US-191, Gallatin Range, Montana
Photo: Sesamehoneytart · CC BY-SA 4.0 · cropped

Drives Montana Bozeman, Big Sky and Paradise Valley

Gallatin Canyon: US-191

US 191, Gallatin Road · Gallatin Gateway → West Yellowstone

Leisurely76 mi1 hr 20 min3,000 ft climbHigh point ≈ 7,300 ftOne way
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The drive

US-191 runs south from Gallatin Gateway up the Gallatin River canyon, past the Highway 64 turnoff to Big Sky, and on to West Yellowstone. It is the only public road connecting the Gallatin Valley communities with Big Sky and West Yellowstone.

The canyon comes first, with river bends between steep forested walls. Later the road opens into meadows and crosses the northwest corner of Yellowstone National Park.

It is busy with trucks and Big Sky traffic, so an off-peak drive is easier.

Along the way

  1. Gallatin Gateway
  2. Big Sky (Highway 64)
  3. West Yellowstone
Elevation
3,000 ft of climbing · high point ≈ 7,300 ft
Gallatin GatewayWest Yellowstone
Curves
Mostly gentle curves
Gallatin GatewayWest Yellowstone
GentleHairpins

Good to know

  • Wildlife strikes are frequent, especially at the canyon mouth and near the Highway 64 junction.
  • MDT has planned pavement and passing-lane work around Big Sky, so expect flaggers in work zones.
  • The road is plowed all winter.

Open all year, weather permitting. Roads close for snow, fire, storms and repairs: before you set off, check Montana 511 (MDT).

Questions about this drive

How long does US-191 through Gallatin Canyon take?

US-191 from Gallatin Gateway to West Yellowstone is 76 miles and takes about 1 hr 20 min.

Is US-191 open in winter?

Yes. It is not on MDT's list of seasonally closed roads, though winter conditions apply.

Is US-191 busy?

Yes, it carries trucks and Big Sky traffic, and is the only public road between the Gallatin Valley and Big Sky.

What you get in the app

Turn by turn, on this roadSpoken directions along the exact route. Carve never reroutes you onto a faster one.
Preview it in 3DFly the whole drive over satellite and terrain before you go.
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More drives near here

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Distance, time, elevation, curves and intensity are from Carve's route. Checked 2026-10-28.

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Map of Gallatin Canyon: US-191, from Gallatin Gateway to West Yellowstone