Nellie Juan to Whittier — Chugach National Forest Turnagain Pass Backcountry Circuit
Chugach backcountry — moose country runs deep.
The Chugach National Forest above Portage Valley holds some of the most underrated overland terrain in Alaska. The network of forest roads and unmaintained tracks threading the Kenai Peninsula’s northern edge — connecting Turnagain Pass to the Whittier area — runs through country that sees more moose than trucks. Starting near the Hope Highway junction, routes push through dense Sitka spruce, across braided glacial outwash, and up into open tundra benches with views of the Kenai Mountains and the Spenard Glacier. The road surfaces deteriorate fast after spring breakup — expect deep ruts, buried rocks, and the occasional section where you’re basically reading the willows to find the track again.
High clearance with a proper skid plate setup is a minimum; lockers earn their keep on the muddier segments. Bring a winch or travel with a buddy — recovery in this country is a long wait for help. Fuel at Anchorage or Girdwood before heading in; there’s nothing beyond that. Cell service evaporates past the Hope junction. The Chugach NF does not require permits for dispersed travel on most backcountry roads, but some motorized routes have seasonal closures to protect wildlife — check with the Glacier Ranger District before departure. Best window is July through September. The Sound views and the absolute absence of crowds are the reward.
Trail Specs
| Difficulty | Difficult |
|---|---|
| Trail Type | Backcountry, High Clearance, Overland Route |
| Surface | Dirt, Gravel, Mixed |
| Features | Camping, Remote, Scenic, Water Crossings |
| Length (miles) | 45 mi / 72.4 km |
| Duration | 2-3 days |
| Max elevation (ft) | 3400 ft |
| Best season | July-September |
| Minimum vehicle | Stock 4WD high clearance |
| Nearest town | Girdwood, AK |
| Land manager | Chugach National Forest — Glacier Ranger District |
| Permit required | No |
| Cell service | None |
| Water crossings | Yes |
| Dispersed camping | Yes |
| Official sources | USFS Chugach NF recreation Glacier Ranger District |
| Start coordinates | |
| End coordinates | |
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Location
Trail Conditions
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Frequently asked questions
What's the minimum rig to run this route without getting stuck?
A stock 4WD high-clearance vehicle will get you through under good conditions, but longer travel, loaded with gear, and multiple water crossings mean a lift and all-terrain tires are a serious advantage. A stocked recovery kit — traction boards, hi-lift, tow strap — is non-negotiable out here. Soft-roaders and AWD crossovers have no business on this trail.
When does this route typically open and close for the season?
July through September is your window — snowpack lingers well into June at 3,400 ft elevation and fall weather turns fast by early October. Shoulder season attempts are high-risk; saturated ground and surprise snow are both real. Don't gamble on May or October without current local intel from the Glacier Ranger District.
Do I need a permit to run this trail or camp along it?
No permit is required to drive or dispersed camp in Chugach National Forest on this route as of current regulations, but that can change — check directly with the Glacier Ranger District before you go. Campfire rules and Leave No Trace practices apply throughout. Some trailhead staging areas may have specific use restrictions, so confirm access points ahead of time.
What's the hardest section and what should I expect?
The water crossings are where rigs get humbled — glacial runoff is cold, fast, and depth varies significantly with rainfall and snowmelt. Multiple crossings lack bridges, so you're reading water in real time. Approach slowly, walk it first if there's any question, and know your diff lock situation before tires hit the water.
How far is the nearest fuel and should I top off before the route?
Girdwood is your closest town but fuel options there are limited — top off in Anchorage before heading out, roughly 40 miles north. At 45 miles of backcountry driving with no services and potential low-range crawling, fuel consumption adds up fast. Carry a spare fuel can; there is no bailout gas on this route.
Trail track
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