Drives Idaho Boise and Central Idaho
US-93: Challis to Salmon
US 93, Salmon River Scenic Byway, Clinic Road · Challis → Salmon
The drive
US 93 between Challis and Salmon is the northern leg of the Salmon River Scenic Byway. This drive heads north from Challis, following the Salmon River through a narrow canyon and open ranch valleys, with the Lemhi Range off to one side. It is 58.3 miles and takes about 1 hr 12 min.
The highway crosses the Pahsimeroi River and rounds the northern end of the Lemhi Range, then crosses the Lemhi Valley south of Salmon. It follows parts of the Lewis and Clark Trail and passes through the Salmon-Challis National Forest. Salmon sits at about 4,000 feet.
Traffic is light and the curves are gentle. The drive continues from the end of the Highway 75 Stanley to Challis drive.
Along the way
- Challis
- Salmon
Good to know
- Traffic is light on this stretch, and the curves are gentle.
- Traffic is light, and services are in Challis and Salmon.
- Check Idaho 511 for winter conditions.
Open all year, weather permitting. Roads close for snow, fire, storms and repairs: before you set off, check Idaho 511.
Questions about this drive
How long does US 93 from Challis to Salmon take?
US 93 from Challis to Salmon is 58.3 miles and takes about 1 hr 12 min.
What river does US 93 follow between Challis and Salmon?
It follows the Salmon River, as part of the Salmon River Scenic Byway.
Is US 93 between Challis and Salmon twisty?
No. It has gentle curves through a canyon and open valleys.
Where does the Salmon River Scenic Byway go?
US 93 north of Challis is the byway's northern leg, ending at Salmon.
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Distance, time, elevation, curves and intensity are from Carve's route. Checked 2026-10-28.