Anton Anderson Memorial Tunnel
North America's longest road tunnel, shared by cars and trains on a single lane. It's the only road route to Whittier.
This roughly 4 km tunnel runs through Maynard Mountain, linking Portage and Whittier. Cars and Alaska Railroad trains share a single lane, taking turns in each direction according to a timetable, with the direction switching roughly every half hour. As you drive through, your tires roll over the rails, which makes for a unique experience. You pay a toll at the entrance booth. Check the last return departure time in advance. If you miss it, you'll have to spend the night in Whittier.
Opening hours
Approx. 05:30–23:00, timed releases (varies by season)
Nearby sights
- Portage Glacier
- Portage Pass Trail
- Whittier & Prince William Sound Glacier Cruise
- Byron Glacier Trail
- Alaska Wildlife Conservation Center
- Spencer Glacier Whistle Stop
- Crow Creek Mine
- Winner Creek Trail & Hand Tram