Which peninsula connects mainland Alaska to the Aleutian Islands?

The Alaska Peninsula connects mainland Alaska to the Aleutian Islands.

This long, narrow landform extends southwest from the Alaskan mainland and separates Bristol Bay from the Pacific Ocean. Its western continuation leads toward the Aleutian island chain, while the Alaska Peninsula itself remains connected to the continent by a relatively narrow neck of land.

The peninsula is highly volcanic. It forms part of the Pacific Ring of Fire and includes volcanoes such as Mount Katmai, Mount Veniaminof, and Mount Pavlof. The 1912 eruption of Novarupta in the Valley of Ten Thousand Smokes, near Katmai, was the largest volcanic eruption of the twentieth century by erupted volume.

Much of the peninsula is remote and protected in national parks and wildlife refuges. Brown bears, salmon, sea otters, and other wildlife are characteristic of its coastal and river environments. The Alaska Peninsula is distinct from the Kenai and Seward peninsulas, which lie farther north.