Idaho BDR Northern Segment — Coeur d’Alene to Lowell via the St. Joe River and Selway Corridor
St. Joe River to Selway — Idaho at its most honest.
The Idaho BDR is one of the toughest BDR routes on the continent, and the northern segment earns that reputation fast. Leaving Coeur d’Alene, the route climbs into the Panhandle National Forest, follows the St. Joe River corridor past historic mining towns like St. Maries, then punches south through the Clearwater country toward Lowell on the Lochsa River. The St. Joe River Road itself is beautiful but narrow — a mix of gravel shelf road with exposure on one side and river on the other. Forest roads in the Selway-Bitterroot approach zone are loose shale and embedded rock, with multiple creek crossings that grow serious in spring runoff. Expect downed timber early season and hunting traffic in fall.
This segment is rated moderate to difficult depending on conditions. A stock lifted 4WD with all-terrain tyres handles it; a locker helps on the steeper shale sections near the Clearwater divide. No single-vehicle issues here if you carry recovery gear — cell service disappears after St. Maries and doesn’t come back until the Lochsa. Best season is late June through September; snow can linger on high forest roads past Memorial Day. Dispersed camping throughout Clearwater and Panhandle National Forests. No permit needed. Fuel in St. Maries — next reliable stop is Lowell, so carry reserve. The payoff is the Lochsa River canyon: one of the most unspoiled river drainages in the Lower 48.
Trail Specs
| Difficulty | Difficult |
|---|---|
| Trail Type | Backcountry, High Clearance, Overland Route |
| Surface | Gravel, Mixed, Rock |
| Features | Camping, Historic, Remote, Scenic, Water Crossings |
| Length (miles) | 198 mi / 319 km |
| Duration | 3-4 days |
| Max elevation (ft) | 6240 ft |
| Best season | Late June-September |
| Minimum vehicle | Lifted 4WD with all-terrain tyres |
| Nearest town | St. Maries, ID |
| Land manager | USDA Forest Service — Clearwater and Idaho Panhandle National Forests |
| Permit required | No |
| Cell service | None |
| Water crossings | Yes |
| Dispersed camping | Yes |
| Official sources | Clearwater National Forest Idaho BDR Official Route |
| Start coordinates | |
| End coordinates | |
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Location
Trail Conditions
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Frequently asked questions
Can a stock 4Runner or Tacoma run this segment, or do I actually need a lift?
A stock 4Runner will struggle — the minimum is a lifted 4WD with all-terrain tires, and that's not just a suggestion. The St. Joe and Selway corridor sections have embedded rock, washed-out two-track, and off-camber shelf road that will bottom out a factory rig or catch a sidewall on stock rubber. Skid plates and a proper recovery kit are not optional here.
When does this segment actually open after winter, and what's the latest I can run it before snow shuts things down?
Late June through September is the reliable window — high elevation sections near 6,200 ft can hold snow into early June and see early storms by mid-October. Check current road conditions with Clearwater National Forest before committing, especially if you're going before July 4th.
Do I need a permit to run the Idaho BDR northern segment or camp along it?
No permit is required to drive the route itself. Dispersed camping on Clearwater and Idaho Panhandle National Forest land is free with no advance reservation needed — follow the standard 14-day stay limit and 200-ft-from-water rules. Some developed campgrounds along the corridor charge a small fee if you choose to use them.
What's the hardest section and what should I actually expect at the worst of it?
The Selway corridor stretch is where things get serious — narrow shelf road with steep drop-offs, loose rock, and zero margin for error when you meet oncoming traffic. You will need to reverse on a ledge at some point. If that sentence makes your palms sweat, do not run this route solo.
Is there anywhere to resupply fuel or water along the 198 miles, or do I need to plan for the full stretch?
Plan as if there is nothing — St. Maries is your last reliable fuel stop before committing to the route, and Lowell (Selway Lodge area) has extremely limited services at the other end. Carry extra fuel for at least 250-mile range given low speeds and terrain, and filter water from the St. Joe or Selway River rather than counting on developed sources. Cell service is nonexistent throughout.
Trail track
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