Ketchum to Wallace Road Trip: Scenic Idaho Drive Guide

Driving from Ketchum to Wallace covers 320 miles of US-93 and I-90, a route that transitions from the high desert of the Wood River Valley to the lush, historic Silver Valley. The road runs along the Big Lost River for 50 miles, a stretch where pronghorn antelope are commonly spotted at dusk. A local quirk: near Challis, drivers must watch for cattle crossings with no warning lights.

This is not a quick hop—expect 5.5 to 7 hours without stops. But for those who slow down, the journey reveals geothermal hot springs, ghost towns, and the deepest gorge in North America. If you're wondering is it worth driving this route, the answer is yes for anyone who values diverse landscapes and solitude. For a deeper dive on finding stops, check how to find the best stops and hidden gems between cities.

US-93 is a two-lane highway with frequent passing lanes; watch for logging trucks especially near Salmon. Icy patches are common on Lost Trail Pass from October to April. Keep a survival kit: water, blankets, and a shovel.

Family-friendly stops include the Lewis and Clark Trail in Salmon (interpretive signs) and the Wallace Train Depot. Pets are welcome on the Trail of the Coeur d'Alenes, a paved rail-trail in Wallace. For fatigue management, rest areas exist at the US-93/I-90 junction (Montana) and in the town of Mullan (at the port of entry).

1. Fatigue: Stop every 2 hours at rest areas or scenic pullouts
2. Safety: Carry chains from Oct to May; cell signal dead zones near North Fork
3. Kids: Interactive mining panning at Wallace's silver mine

The route primarily follows US-93 north from Ketchum through Challis and Salmon, then merges onto I-90 East near Missoula, Montana. The final leg winds through Idaho's panhandle on I-90 to Wallace. Cell service is sparse north of Challis; download offline maps and fuel up in Ketchum (last premium gas for 70 miles).

Gas stops are critical: Challis, Salmon, and Lost Trail Pass (Montana) have stations open until 8 PM. Diesel is available in Salmon. The Lost Trail Pass summit (7,000 ft) often sees snow into June, so check conditions. Towing? The steep grades near Galena Summit (8,701 ft) require low gear.

• Ketchum: Chevron, Sinclair (both 24/7 pumps)
• Challis: Sinclar and Conoco (closes 9 PM)
• Salmon: Conoco and Exxon (open until 10 PM)
• Lost Trail Pass: seasonal station (May-Oct)

The Sawtooth National Recreation Area greets you with jagged peaks and alpine lakes. Stop at Redfish Lake for a short hike to the lake's edge (5 min). As you descend into the Pahsimeroi Valley, the land opens to sagebrush and cattle ranches. Near Challis, the Salmon River Canyon offers rafting put-ins for intermediate kayakers.

Wallace sits at the heart of the Coeur d'Alene mining district, a National Historic Landmark. The Pulaski Tunnel Trail recounts the 1910 fire that nearly destroyed the town. Local commerce thrives on independent galleries and the Sierra Silver Mine tour, where you can pan for silver.

• Natural: Redfish Lake, Stanley overlook, Salmon River Canyon
• Cultural: Wallace District Mining Museum, Oasis Bordello Museum
• UNESCO adjacent: Kootenai Falls (30 min detour near Libby, MT)