On the mainland is Jonesport in Washington County.
The island is 5 mi (8 km) long, 1.5 mi (2.5 km) wide and it is the biggest island in the Great Wass Archipelago, which contains over 43 islands extending off the coast from Jonesport.
The interior of Great Wass Island supports coastal Maine's largest stand of jack pine, other typical plants are bakeapple (Rubus chamaemorus), deer-hair sedge (Trichophorum cespitosum), and dragon's mouth orchid (Arethusa bulbosa).
The island is part of the Town of Beals, in Washington County.
This Maine state location article is a stub.