Back
Lost Trail Pass: US-93, Bitterroot Valley, Montana
Photo: Forest Service Northern Region · Public domain

Drives Montana Missoula, the Bitterroot and Western Montana

Lost Trail Pass: US-93

US 93, Nez Perce National Historic Trail · Darby → Lost Trail Pass

Leisurely30 mi35 min3,600 ft climbHigh point ≈ 7,000 ftOne way
Scan to drive it in CarvePoint a phone's camera here. It opens ready to drive.
Drive it in Carve, free

Opens this route in the app, or where to get it.

Drive this road
in the appOpen

The drive

US 93 runs south from Darby up the Bitterroot Valley, narrowing past Sula, then winds through forest to Lost Trail Pass at 7,014 feet on the Idaho line. The valley half is gentle; the last miles, about 26 to 29, are the twisty part.

The pass is about half a mile west of the Continental Divide. Lost Trail Powder Mountain ski area is on the pass, and a visitor center there is open in summer. The drive ends at the pass, 30.1 miles and about 35 minutes from Darby; US 93 goes on into Idaho and Salmon. Lewis and Clark's expedition was the first to travel the corridor between Lost Trail Pass and Lolo, in 1805.

Along the way

  1. Darby
  2. Sula
  3. Lost Trail Pass (Idaho line)
Elevation
3,600 ft of climbing · high point ≈ 7,000 ft
DarbyLost Trail Pass
Curves
Mostly gentle, with one twisty stretch
DarbyLost Trail Pass
GentleHairpins

Good to know

  • The climb comes last, with the winding section in the final miles.
  • The Sula Ranger Station, (406) 821-3201, can give pass information.

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

Questions about this drive

How long does Lost Trail Pass take to drive from Darby?

Darby to Lost Trail Pass on US 93 is 30.1 miles and takes about 35 minutes.

How high is Lost Trail Pass?

Lost Trail Pass on US 93 is 7,014 feet, on the Montana-Idaho border.

Is there skiing at Lost Trail Pass?

Yes. Lost Trail Powder Mountain ski area is on the pass.

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.
Drive it with no signalAPEXDownload the map and every turn before you go.
Live Group TrackingAPEXEveryone on the route, on the map, by name.
Road conditionsAPEXWet or dry, ice, fog and wind along the road before you go.
Record your drivesAPEXRecord a drive and turn it into a route to drive again or share.

Free on iPhone and Android. CarPlay and Android Auto come with Apex.

Download on theApp StoreEarly access onGoogle Play

More drives near here

All 26 drives in Montana ›

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

+ Plan a new route
Map of Lost Trail Pass: US-93, from Darby to Lost Trail Pass