Guide to the Alaska Railroad Glacier Discovery Train

This route suits travelers looking for a day trip from Anchorage into remote areas with no road access. Hikers and rafters frequently use this train to reach the Spencer Glacier whistle stop, where trails lead directly to a glacier lake. The journey provides a practical way to see the wilderness without needing a car. Because it operates as a seasonal summer service, as of 2026, visitors must plan their trips during the warmer months. The train connects with other major routes in Anchorage, making it a convenient addition to a longer Alaskan rail tour. Passengers can easily link this day trip with journeys on the Denali Star or Coastal Classic.

Route overview

The Alaska Railroad Glacier Discovery runs from Anchorage to Grandview and back in a single day. The total round trip covers about 150 miles. As of 2026, the train operates daily in summer, providing a seasonal service for visitors exploring the state. The journey begins at the Anchorage station, heading south through Girdwood and Portage. From Portage, the train makes a detour to the coastal town of Whittier before reversing course and continuing south into the mountains.

After Whittier, the route enters remote backcountry. It stops at the Spencer Glacier whistle stop, a popular drop-off point for outdoor activities, before terminating at Grandview. Because this is not an overnight train, passengers stay on board for the return trip to Anchorage later the same day. The schedule allows time for passengers to disembark at Spencer Glacier, hike the trails, and catch the train on its way back north. Travelers planning a broader itinerary can connect to the Alaska Railroad Denali Star or Coastal Classic back in Anchorage.

What you see, section by section

Anchorage to Portage

The train departs Anchorage and travels south along the edge of the water. Passengers enjoy views of Turnagain Arm as the route follows the coastline. This section of the journey offers wide vistas of the inlet and surrounding mountains. The tracks run parallel to the highway for much of this stretch, passing through the town of Girdwood before arriving at Portage. Daylight is plentiful during the summer operating season, ensuring clear visibility of the coastal landscape.

Portage to Whittier

From Portage, the train turns east toward the coast to reach Whittier. The highlight of this segment is the Anton Anderson Memorial Tunnel. This long passage cuts directly through the mountain and is shared by both trains and cars. The train travels through the dark tunnel before emerging near the Prince William Sound. After stopping in Whittier, the train reverses direction to pass back through the tunnel and continue its journey south.

Spencer Glacier to Grandview

Beyond Portage, the route enters remote backcountry with no road access. The train arrives at the Spencer Glacier whistle stop, where hikers and rafters often disembark to explore trails leading to a glacier lake. Continuing south, the tracks climb higher into the alpine landscape toward Grandview. This final stretch offers views of untouched wilderness and mountain terrain. After reaching Grandview, the train stops and then makes the return journey back to Anchorage.

Classes and onboard

• Adventure Class

The Alaska Railroad Glacier Discovery operates with Adventure Class seating. This is the standard class of service on the Alaska Railroad, providing comfortable forward-facing seats with large windows for viewing the landscape. Because this is a day trip, there are no sleeper cars available. Passengers can move around the train during the journey to stretch their legs or visit the cafe car for snacks and drinks.

Adventure Class offers a relaxed environment suitable for the short travel times between stops. Travelers heading into the backcountry should bring their own outdoor gear, as the train simply provides transport to the whistle stops. If you plan to spend the day hiking at Spencer Glacier, consider packing a lunch and extra water. You can read more about what to pack for a long train trip to ensure you are prepared for the remote conditions.