off E coast of Kenai Peninsula, trends S to Gulf of Alaska, 26 mi. SW of Chenega Mts. 20 miles long.
Named by Captain Vancouver, Royal Navy (RN), "after an examination by Joseph about June 1, 1794, very likely in honor of John Bainbridge, an astronomer of the seventeenth century" (Wagner, 1937, p. 374).
Port Bainbridge, Auk Bay, Eleshansky Cove, Fox Farm Bay, Goat Harbor, Hogg Bay, Humpback Cove, Icy Bay, Koss Cove, North Twin Bay, Puffin Cove, Puget Bay, South Twin Bay, Squirrel Bay, Swanson Bay, Whale Bay,