Mitkof Island

56°35′54″N 132°48′33″W / 56.59833°N 132.80917°W / 56.59833; -132.80917

Mitkof
Petersburg in 2005, with Petersburg Mountain (Kupreanof Island) in the background
Mitkof
Geography
ArchipelagoAlexander Archipelago
Area208.4 sq mi (540 km2)
Length17 mi (27 km)
Width9.9 mi (15.9 km)
Highest elevation3,317 ft (1011 m)
Highest pointCrystal Mountain
Administration
United States
StateAlaska
BoroughPetersburg
Largest settlementPetersburg
Demographics
Population3364 (2000)

Mitkof Island is an island in the Alexander Archipelago in southeast Alaska between Kupreanof Island to the west and the Alaskan mainland to the east. It is approximately 16 km (9.9 mi) wide and 28 km (17 mi) long with a land area of 539.7 km2 (208.4 sq mi), making it the 30th largest island in the United States. Much of the island is managed as part of the Tongass National Forest.

The island is relatively flat with numerous muskegs. The highest point is Crystal Mountain 3,317 ft (1,011 m).

The city of Petersburg is on the north end of the island. It's the headquartered of the Petersburg Indian Association, a federally recognized Tlingit tribe. The total population of the island was 3,364 at the 2000 census, almost all of it in the city of Petersburg.

The island is surrounded by Frederick Sound to the north, Dry Strait to the east, Sumner Strait to the south, and Wrangell Narrows to the west. Bordered by Mitkof Island on one side, and Kuprenof and Woewodski Islands on the other, the Wrangell Narrows creates the only navigable 'Inside Passage' at this latitude and is one of the six Listed Narrows of Southeast Alaska. Because of their shallow depths, the largest cruise ships do not pass through Wrangell Narrows or through Dry Strait. Spirit Creek is the southernmost stream on the island in the Wrangell Narrows, just two miles from where the narrows opens onto Sumner Strait.