Somewhere past Wasilla, the traffic thins, the lakes start to flash between the spruce, and a sign tells you Denali is still a long way ahead. That is the moment most travelers realize the Parks Highway is not a shortcut but the spine of the trip. It is the road that ties Anchorage to Fairbanks and opens the door to Denali.
What is the Parks Highway?
The George Parks Highway is the main road between Anchorage and Fairbanks, running 323 miles from its start at the Glenn Highway to the Interior. It is also the principal way into Denali National Park and Preserve and Denali State Park, which is why so many Alaska itineraries are really built around it.
On paper it is Interstate A-4, but on the signs you will see it as Alaska Route 3. The road was completed in 1971 and took its current name in 1975. Its mileposts do not start at zero: they begin at Mile 35, continuing the numbering of the Glenn Highway, so the first Parks Highway marker you pass is already in the thirties.
Where it starts and how it is built
The highway leaves the Glenn Highway about 35 miles from Anchorage, near Palmer, and that first stretch is built to freeway standards. For most of the rest of the way it is the kind of road you would expect in the Interior, a route that threads the valley and the forest rather than racing across them.
The only other freeway-standard section is the Robert J. Mitchell Expressway in Fairbanks, so the two ends of the journey feel like highway driving, and the long middle feels like Alaska.
The road that opens Denali
Denali National Park sits 240 miles north of Anchorage and 120 miles south of Fairbanks, so the Parks Highway puts you at its door from either city. The highway also crosses Denali State Park, with signs marking where you enter and leave it.
At Cantwell, the Parks Highway meets the Denali Highway (Alaska Route 8). That junction is where the route splits for travelers heading onto a different kind of road, while the Parks Highway carries on toward the park entrance and Fairbanks.
| Detail | Value |
|---|---|
| Length | 323 miles |
| Route designation | Interstate A-4, Alaska Route 3 |
| Completed | 1971 |
| Named | 1975 |
| First milepost | Mile 35 |
| Freeway sections | Palmer area, Robert J. Mitchell Expressway in Fairbanks |
| Junction with Denali Highway | Cantwell |
What do you pass between Anchorage and Fairbanks?
You pass a string of towns and parks that make natural stopping points: Wasilla, Talkeetna, Denali State Park, Cantwell, Denali National Park and Nenana, in roughly that order from Anchorage. Each one has its own character, and several are destinations in their own right.
Wasilla
Wasilla is the first big town, about 43 miles from Anchorage by highway, in the Matanuska-Susitna Valley. Nearly a third of its residents drive the 40-minute commute into Anchorage each day, which gives the road a busy, ordinary rhythm here that disappears farther north.
It is also the headquarters of the Iditarod Trail Sled Dog Race, and the Museum of Alaska Transportation and Industry, established in 1967, collects the machines and stories that opened the state. Wasilla Lake and Lake Lucille lie within city limits and are easy to reach from the highway.
The city runs a large campground and boat launch on Lake Lucille, plus Newcomb Park on Wasilla Lake. Alaska State Parks adds the Finger Lake State Recreation Area and the Little Susitna River Public Use Area, with a large campground, river access and the gateway to a 300,800-acre public game reserve.
Talkeetna
Talkeetna sits halfway between Anchorage and Denali in the Matanuska-Susitna Valley, 2 1/2 hours from Anchorage by car and 3 hours from Denali. It is closer to Mt. Denali itself than the national park entrance is, and expeditions to climb the mountain start here.
Three major glacial rivers come together at Talkeetna, and anglers can fish for salmon and rainbow trout, in water that is less crowded than the rivers farther south. Without a car, the Park Connection Motorcoach serves Talkeetna from Anchorage, Seward and Denali, and the Alaska Railroad reaches it in 3 hours from Anchorage, 4.5 hours from Denali or 8.5 hours from Fairbanks.
Denali State Park and Denali National Park
Denali State Park comes first, and the signs tell you when you have entered it. Farther along, the national park is the real draw. Private vehicles may drive only the first 15 miles of the Denali Park Road, as far as Savage River. Beyond that, you go by park shuttle bus, on foot or by bicycle.
On the shuttle buses, youth ages 15 to 17 pay half the regular fare, and children 14 and under ride free. During summer the park offers free sled dog demonstrations at 10AM, 2PM and 4PM daily, reached by a free shuttle from the Denali Visitor Center, and you need to arrive 40 minutes before the demonstration.
For overnight stays, campers at Teklanika River Campground who drive their own vehicle must stay at least three nights and leave the vehicle parked at the campsite the whole time. Overnight trips into the backcountry need a permit, available at the Backcountry Information Center.
Nenana
Nenana is the last real stop before Fairbanks, 55 road miles southwest of the city and 304 road miles north of Anchorage. It became a city on November 17, 1921, and sits at 351 feet above sea level on the Tanana River, at mile 412 of the Alaska Railroad.
The Tanana River at Nenana is ice-free from early May to late October. The climate is a mix of humid continental and subarctic, with long, cold, dry winters and warm summers with cool nights.
| Stop | Fact |
|---|---|
| Wasilla | About 43 miles from Anchorage |
| Talkeetna | 2 1/2 hours from Anchorage by car |
| Cantwell | Junction with the Denali Highway |
| Denali National Park | 240 miles north of Anchorage |
| Nenana | 55 road miles from Fairbanks |
What do you need to know before you drive it?
The main thing to know is that conditions on the Parks Highway are published by the Alaska Department of Transportation on the Alaska 511 website, and that is where you look before setting out. The site uses clear road condition categories: Good, Fair, Difficult, Very Difficult, Hazardous, Road Closure and No Winter Maintenance.
Reading Alaska 511
AKDOT has partnered with Waze to publish Waze-reported incidents and closures on Alaska 511, through the Waze for Cities program, which is a free data exchange between Waze and government entities. That means the map shows not just official notices but also what other drivers have reported.
The map also carries cameras. On the map page, click a camera icon, then the My Cameras button in the popup, to add it to your list. On the camera page, the My Cameras option sits under the three dots icon below the image.
Saving routes and getting alerts
You can create an account on Alaska 511 to save routes and receive notifications, and you must log in to save a route for future viewing. Route notifications go out by SMS by default on weekdays from 6 AM to 6 PM. For a highway as long as this one, that is a handy habit: save the Anchorage to Fairbanks route, add a camera or two near the places you plan to cross, and you have a quick look at the road before each leg.
Planning the pace
Because the road is 323 miles with towns, parks and a junction along the way, it suits being split into stages rather than driven in one push. Talkeetna, 2 1/2 hours from Anchorage by car, is a natural first night, and Denali is 3 hours farther. Nenana, close to Fairbanks, makes a last stop before the freeway-standard Mitchell Expressway.
Good to know before you go
Mileposts start at Mile 35, so a marker in the hundreds tells you how far along the highway you are, not how far from Anchorage. Denali’s park road limits private vehicles to its first 15 miles, so plan on a shuttle bus if you want to go deeper, and keep an eye on the Alaska 511 conditions for each stretch of the drive.
Sources
- Wikipedia, George Parks Highway (https://en.wikipedia.org/wiki/George_Parks_Highway), checked October 11, 2026
- Alaska.org, dest talkeetna (https://www.alaska.org/destination/talkeetna), checked October 11, 2026
- Wikivoyage, Denali National Park (https://en.wikivoyage.org/wiki/Denali_National_Park), checked October 11, 2026
- Wikipedia, Nenana, Alaska (https://en.wikipedia.org/wiki/Nenana,_Alaska), checked October 11, 2026
- Wikipedia, Wasilla, Alaska (https://en.wikipedia.org/wiki/Wasilla,_Alaska), checked October 11, 2026
- Alaska 511 (https://511.alaska.gov/), checked October 11, 2026