Dalton Highway — Coldfoot to Deadhorse via the Brooks Range, Atigun Pass, and North Slope (North Segment)
End of the road. Arctic Ocean or bust.
North of Coldfoot the Dalton Highway stops messing around. The last services are behind you, Atigun Pass — the highest highway pass in Alaska at 4,739 feet — is ahead, and beyond that lies the North Slope: 170 miles of open tundra between the Brooks Range and the Arctic Ocean with no services, no towns, and no bail-out options. Built in 1974 to supply the trans-Alaska pipeline, the haul road is legal for civilian travel but built for 18-wheelers. Trucks own this road. Pull over immediately when one comes at you on a blind curve — your windows will be on the other side of the road if you don’t. Atigun’s south face is steep, loose, and frequently iced. The descent into the North Slope is breathtaking: an endless sea of tundra polygon lakes stretching to the horizon.
Deadhorse is the end of the road — an industrial staging yard for the Prudhoe Bay oil fields. You need to book a tour to reach the actual Arctic Ocean shore. Running this segment requires a 4WD with strong all-terrain or mud tyres, two full-size spares minimum, a satellite communicator, and enough fuel for 300-plus miles since the one pump at Coldfoot is the last before Deadhorse. Stone chip damage to windshields is near-certain. Best window is late June through August; Atigun can see snow any month. Flats are routine. Tow service essentially does not exist. That’s the deal — and it’s worth every mile.
Trail Specs
| Difficulty | Difficult |
|---|---|
| Trail Type | High Clearance, Overland Route |
| Surface | Dirt, Gravel, Mixed |
| Features | Camping, High Altitude, Historic, Remote, Scenic |
| Length (miles) | 240 mi / 386 km |
| Duration | 2-4 days |
| Max elevation (ft) | 4739 ft |
| Best season | June-August |
| Minimum vehicle | 4WD with all-terrain tyres and dual spares |
| Nearest town | Coldfoot, AK |
| Land manager | Alaska DOT & Public Facilities / 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 page BLM Dalton Highway recreation info |
| 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
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Frequently asked questions
Can a stock truck or SUV handle the Dalton, or do I need a built rig?
A stock 4WD with all-terrain tires can complete it, but you need at least two full-size spare tires — the sharp gravel chews through tires fast and flats are common. Lift isn't mandatory, but high clearance matters on the rougher sections north of Atigun Pass. A skid plate setup is strongly advisable.
When does the Dalton Highway close, and is there a shoulder season window?
The road stays open year-round for commercial traffic, but for overlanders June through August is the practical window — Atigun Pass can see snow and ice well into May and again by September. Summer also gives you 24-hour daylight, which matters when you're 100+ miles from help.
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 you must book a paid tour through one of the local operators in town, as public vehicle access to the coast is restricted.
What's the hardest section of this route and what should I actually expect?
Atigun Pass is the crux — at 4,739 feet it's the highest highway pass in Alaska, and the steep gravel descent on the north side can be loose, washboarded, and brutally exposed in wind or rain. North of the pass, the road flattens onto the North Slope but trades elevation for endless frost heaves, soft shoulders, and the psychological grind of true isolation.
Where do I fuel up, and how much range do I realistically need?
Coldfoot (mile 175) is your last reliable fuel stop before Deadhorse — that's roughly 240 miles with no services in between. Carry a minimum of 5-10 gallons of auxiliary fuel; there is no gas, no cell service, and no roadside assistance on the North Slope.
Trail track
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