Portage Glacier

Portage Glacier flows into a lake roughly 600 feet (180 m) deep surrounded by steep mountain walls, with its ice face positioned about 3 miles (5 km) from the lakeside parking area. The glacier's white and blue ice masses stand out sharply against the darker rock and water, creating a layered view of the landscape.

During the 1800s, the glacier served as a passage for Alaska Native peoples and Gold Rush miners traveling between Prince William Sound and Turnagain Arm. This route provided a key connection through the Chugach Mountains for both trade and settlement expansion.

The Begich Boggs Visitor Center displays exhibitions about local wildlife and regional ecosystems shaped by natural forces. Visitors learn how the 1964 earthquake transformed the landscape and continues to influence the area today.

From May through September, visitors can reach the glacier on hour-long boat tours or hike the Portage Pass Trail for a different perspective. Waterproof clothing is recommended since weather conditions near the lake can change quickly throughout the day.

The glacier breaks apart at its terminus, depositing chunks of ice that float as natural icebergs throughout the lake and can be seen from multiple vantage points. These drifting ice blocks create a constantly shifting spectacle that changes appearance depending on light and season.