Lolo Pass to Lochsa River Historic Route
Lewis and Clark's nightmare in modern 4x4 form
The Lochsa River cuts through some of Idaho’s most unforgiving wilderness, and this route from Lolo Pass traces the same path that nearly killed Lewis and Clark in 1805. Starting at the Montana-Idaho border on Highway 12, you’ll drop into the Lochsa drainage through dense cedar and fir forests, crossing multiple tributaries as the road deteriorates from pavement to gravel to technical 4×4 track. The real test comes at Wendover Creek, where flash floods regularly wash out the crossing and leave stranded vehicles as testament to poor timing.
This is expert-level territory requiring full skid plates, recovery gear, and a winch — the Lochsa doesn’t forgive mistakes. Best attempted July through September when water levels drop, though even then expect knee-deep crossings and muddy climbs that’ll test your differential locks. No cell service for 60 miles means self-reliance is mandatory. What you get is complete isolation in roadless wilderness where elk outnumber humans 100 to 1, plus the satisfaction of completing one of Idaho’s most notorious backcountry challenges.
Trail Specs
| Difficulty | Expert |
|---|---|
| Trail Type | Technical 4x4 |
| Surface | Mixed |
| Features | High Altitude, Historic, Remote, Water Crossings |
| Length (miles) | 47 mi / 75.6 km |
| Duration | 1-2 days |
| Max elevation (ft) | 5233 ft |
| Best season | July-September |
| Minimum vehicle | Modified 4WD with skid plates and winch |
| Nearest town | Kamiah, Idaho |
| Land manager | Clearwater National Forest |
| Permit required | No |
| Cell service | None |
| Water crossings | Yes |
| Dispersed camping | Yes |
| Official sources | fs.usda.gov |
| Start coordinates | |
| End coordinates | |
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| Find on Google | Search on Google → |
Location
Trail Conditions
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Frequently asked questions
Can a stock Tacoma or 4Runner run this trail?
No. The minimum is a modified 4WD with skid plates and a winch — stock rigs will get eaten alive. High clearance, lockers, and a recovery kit aren't optional here.
When does the trail actually open after winter?
July through September is the reliable window. Snowpack at elevation can block the route well into June, and early October storms can close it fast — check with Clearwater National Forest before you go.
Do I need a permit to drive this route?
No permit is required to drive the trail, but you're operating in Clearwater National Forest so standard forest rules apply — no permit needed for dispersed camping either, just follow the 14-day stay limit and Leave No Trace.
What's the hardest section and what makes it technical?
The most demanding stretches involve loose rocky climbs, off-camber shelf roads, and multiple water crossings with no bypasses. A missed line on the shelf sections means a serious drop — this isn't a trail to figure out as you go.
How far is the nearest gas station, and is there water on trail?
Fuel up in Kamiah before you leave — there's nothing on route for the full 47 miles. Natural water sources exist along the Lochsa corridor but filter everything; the crossings are glacial runoff and backcountry drainages.
Trail track
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