Dalton Highway North Slope — Coldfoot to Deadhorse via Atigun Pass and the Brooks Range
Arctic Ocean or bust — no bail-outs north of Coldfoot.
The Dalton Highway (Alaska Route 11) was built in 1974 to supply the Trans-Alaska Pipeline and haul road trucks to Prudhoe Bay — it was never designed for tourists, and it shows. North of Coldfoot, the last fuel before Deadhorse, the road climbs to Atigun Pass at 4,739 feet — the highest highway pass in Alaska — crossing the Brooks Range and dropping into the North Slope. From there it’s 240 miles of open Arctic tundra, pipeline crossings, and endless sky to Deadhorse and the oil fields on the Beaufort Sea coast. Rocks flung by 18-wheelers, washboard corrugations, stretches of loose shale, and sudden mudslides after rain make windshield chips and blown tyres a standard part of the trip, not a disaster.
Carry at least two full-size spare tyres — not one. The fuel gap between Coldfoot and Deadhorse (240 miles) has no room for error; carry extra. Cell service is nonexistent through the Brooks Range. The Arctic tundra itself is accessible only in summer (June–September) when the road is maintained; winter travel exists but demands expedition-level preparation and heated equipment. The Arctic Ocean at Prudhoe Bay is technically accessible by tour only — independent access to the water requires a permit through the oil field operators. Gravel, mud, and high-speed truck traffic are the main hazards; a properly equipped high-clearance 4WD handles the road fine, but respect the trucks — they don’t stop easily and they own this highway.
Trail Specs
| Difficulty | Difficult |
|---|---|
| Trail Type | Backcountry, High Clearance, Overland Route |
| Surface | Dirt, Gravel, Mixed |
| Features | Camping, High Altitude, Historic, Remote, Scenic |
| Length (miles) | 240 mi / 386 km |
| Duration | 3-5 days |
| Max elevation (ft) | 4739 ft |
| Best season | June-September |
| Minimum vehicle | High-clearance 4WD with two full-size spares, extra fuel, and satellite communicator |
| Nearest town | Coldfoot, Alaska |
| Land manager | Alaska Department of Transportation / Bureau of Land Management – Central Yukon Field Office |
| Permit required | No |
| Cell service | None |
| Water crossings | No |
| Dispersed camping | Yes |
| Official sources | Alaska DOT – Dalton Highway BLM Dalton Highway Corridor |
| Start coordinates | |
| End coordinates | |
| Copy both for Google Maps directionsClick to copy the directions URL · or open it directly in a new tab | |
| Find on Google | Search on Google → |
Location
Trail Conditions
No recent condition reports. Be the first to post one.
Log in to post a condition report.
Frequently asked questions
Can a stock Tacoma or 4Runner handle the Dalton from Coldfoot to Deadhorse?
A stock high-clearance 4WD can physically make it, but tire damage from sharp haul-road gravel is the real threat — two full-size spares are mandatory, not optional. Budget for at least one flat. Lifted rigs with all-terrain or mud-terrain tires fare significantly better on the rougher northern sections above Atigun Pass.
When does Atigun Pass typically close, and what's the winter access situation?
The pass can close any month due to avalanche risk, blizzards, or whiteout conditions — Alaska DOT closes it without warning. The highway is technically open year-round as a haul road, but civilian travel in winter is genuinely dangerous and rescue is not guaranteed. June through September is the only realistic window for overlanders.
Do I need a permit to drive the Dalton Highway to Deadhorse?
No permit is required to drive the highway itself. However, Deadhorse is an active oil field — to reach the Arctic Ocean shoreline you must book a tour through one of the local operators in town, as public access to the coast is restricted by Prudhoe Bay oil infrastructure.
What's the hardest section of this route and what should I actually expect?
Atigun Pass at 4,739 feet is the crux — the road is steep, narrow, exposed, and frequently covered in ice, mud, or snow even in summer. North of the pass the road softens into rolling tundra but gets rougher, lonelier, and increasingly unforgiving if something breaks. Loaded semi-trucks share the road the entire way and throw rocks constantly; keep distance and slow down when they pass.
How do I handle fuel on this stretch — is there anywhere to fill up between Coldfoot and Deadhorse?
Coldfoot is your last real fuel stop before Deadhorse, 240 miles north. Deadhorse has fuel available but prices are extremely high and availability can be inconsistent depending on supply trucks. Carry a minimum 10-gallon auxiliary fuel supply and top off completely in Coldfoot before heading north.
Trail track
No GPX track for this trail yet. If you've driven it and have a track, contribute below.
Log in to contribute a GPX track.