Ugamak Island is one of the Krenitzin Islands

Krenitzin Islands

The Krenitzin Islands are a group of small islands located in the eastern portion of the Fox Islands group of the eastern Aleutian Islands, Alaska. The Krenitizins are situated between Unalaska Island to the southwest and Unimak Island to the northeast...

, a subgroup of the Fox Islands

Fox Islands (Alaska)

The Fox Islands are a group of islands in the eastern Aleutian Islands of the U.S. state of Alaska. The Fox Islands are the closest to mainland North America in the Aleutian chain, and just east of Samalga Pass and the Islands of Four Mountains group....

 group of the eastern Aleutian Islands, Alaska

Alaska

Alaska is the largest state in the United States by area. It is situated in the northwest extremity of the North American continent, with Canada to the east, the Arctic Ocean to the north, and the Pacific Ocean to the west and south, with Russia further west across the Bering Strait...

. Ugamak is an Aleut word transcribed by Father Veniaminov (1840) which, according to R. H. Geoghegan, may mean "ceremony island". It is 5.9 miles (9.5 km) long and is located 32 miles (51.5 km) east of Akutan Island

Akutan Island

Akutan Island is an island in the Fox Islands group of the eastern Aleutian Islands in the U.S. state of Alaska. The island is approximately 18 mi in length. It contains the Mount Akutan volcano, which had a major lava eruption in 1979...

. Ugamak Bay is situated on the southeast coast of Ugamak, and Ugamak Strait is a three mile wide channel that separates Ugamak from Kaligagan Island to the west.