How does the Aleutian Range connect with the Aleutian Islands?

The Aleutian Range and the Aleutian Islands are physically and geologically linked as a continuous mountain system. The Aleutian Islands represent the southwestern extension of the mountain peaks that stretch the length of the Alaska Peninsula.1

Specifically, the Aleutian Islands form a chain of mountainous volcanic peaks that serve as the crest of a massive submarine ridge, which rises 11,000 feet (3,350 meters) above the seafloor. This archipelago extends in an arc for approximately 1,100 miles (1,770 km) from the Alaska Peninsula to Attu Island. Together, the Aleutian Range and the Aleutian Islands create a long, narrow belt of peaks that spans 1,600 miles (2,575 km) from Attu Island to Mount Spurr, located just west of Anchorage.1