Kellys Stump Road to Flattop Mountain — Wrangell-St. Elias Backcountry Drive
42 miles into the biggest park in America.
The Nabesna Road punches 42 miles into Wrangell-St. Elias National Park from Slana, threading through boreal spruce flats, tundra benches, and creek crossings that will humble overland rigs that weren’t properly built. Mile 29 at Sportsman’s Lodge marks the last reliable stopping point before the road degrades into rutted volcanic gravel and muddy creek fords — most notably the Copper Creek crossing, which can flood out in June and early July without warning. The surrounding peaks of the Wrangell Mountains loom over 16,000 feet and the volcanic cone of Mount Sanford dominates the northern skyline on clear days. This is a road where the moose outnumber the humans and the grizzlies know it.
Minimum entry requirement is a true high-clearance 4WD with all-terrain tires, a full-size spare, and enough fuel for the round trip — there is no gas past Slana. Cell service drops to zero by mile five and stays there. The NPS recommends checking road conditions at the Slana Ranger Station before committing. Best window is mid-July through early September. No permit required, dispersed camping allowed at designated pull-outs. What you get is 42 miles of genuine wilderness driving with the continental United States’ biggest mountains watching every mile.
Trail Specs
| Difficulty | Difficult |
|---|---|
| Trail Type | Backcountry, High Clearance, Overland Route |
| Surface | Dirt, Gravel, Mixed |
| Features | Camping, Historic, Remote, Scenic, Water Crossings |
| Length (miles) | 84 mi / 135.2 km |
| Duration | 2-3 days |
| Max elevation (ft) | 3400 ft |
| Best season | July-September |
| Minimum vehicle | High-clearance 4WD |
| Nearest town | Slana, Alaska |
| Land manager | Wrangell-St. Elias National Park and Preserve |
| Permit required | No |
| Cell service | None |
| Water crossings | Yes |
| Dispersed camping | Yes |
| Official sources | nps.gov |
| Start coordinates | |
| End coordinates | |
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Location
Trail Conditions
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Frequently asked questions
What's the minimum rig I need to run Kellys Stump Road to Flattop Mountain?
High-clearance 4WD is required — not optional. A lifted truck or dedicated overland build is ideal; a stock SUV like a base 4Runner will struggle on the rougher sections and water crossings. Lockers are a serious advantage out here.
When is this route actually drivable, and what happens if it rains?
July through September is your window. Rain turns the dirt and gravel sections into axle-deep mud fast, and early season snow can persist well into June at elevation. Check conditions before you commit — there's no quick exit if things go sideways.
Do I need a permit to drive this route through Wrangell-St. Elias?
No permit is required to drive the route, and there's no entrance fee for Wrangell-St. Elias National Park. Dispersed camping is allowed but follow Leave No Trace and check current NPS guidelines at nps.gov/wrst before you go.
What's the hardest section and what should I actually be ready for?
The water crossings are the biggest variable — depth and current change with rainfall and snowmelt, and there's no way to know conditions until you're standing at the bank. The route also gets progressively rougher the deeper in you push, with loose rock, ruts, and limited room to maneuver in spots.
How far is the nearest gas from the trailhead, and is there any cell service on this route?
Slana is your last real resupply point before you head in — fuel up there because there is nothing on this route. Cell service is completely absent for the entire 84 miles, so download offline maps, file a trip plan with someone reliable, and carry a satellite communicator.
Trail track
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