Pacific OceanUnited States
51°23′N 178°58′W
Delarof Islands
Part of Andreanof Islands
The Delarof Islands (Aleut: Naahmiĝun tanangis; Russian: Острова Деларова) (ca. 51°23′13″N 178°57′47″W) are a group of small islands at the extreme western end of the Andreanof Islands group in the central Aleutian Islands, Alaska.

Hillebrand, Steve, U.S. Fish and Wildlife Service / Public domain
Chart
Overview
The Delarof Islands (Aleut: Naahmiĝun tanangis; Russian: Острова Деларова) (ca. 51°23′13″N 178°57′47″W) are a group of small islands at the extreme western end of the Andreanof Islands group in the central Aleutian Islands, Alaska. The Delarofs consist of 11 named islands (from West to East): Amatignak, Unalga (Unalĝa), Tanadak (Tanaadax̂), Ulak, Gareloi, Kavalga (Qavalĝa), Ogliuga (Aglaga), Skagul (Sxaĝulax̂), the Tag (Tagachaluĝis), Ugidak (Qagan-tanax̂), and Ilak. The northern- and southern-most named Delarof Islands are Gareloi Island and Amatignak Island respectively. The islands were named after the 18th century Greek explorer and first de facto Governor of Alaska, Evstratios Ioannou Delarof (Ευστράτιος Ιωάννου Ντελάρωφ). These islands are separated from the remainder of the Andreanofs by Tanaga Pass to the east and from Amchitka and Semisopochnoi (the easternmost of the Rat Islands) by Amchitka Pass to the west. All of these islands are managed as part of the Aleutian Islands Unit of the Alaska Maritime National Wildlife Refuge. The Delarof Islands together have a land area of 63.842 sq mi (165.349 km2). None of the islands are populated. The Delarof Islands were named in 1836 by Captain Fyodor Petrovich Litke of the Imperial Russian Navy. He named them after Greek-born administrator Eustrate Ivanovich Delarof (also spelled Evstratii Ivanovich Delarov), who was the chief manager of the Shelikhov-Golikov Company (precursor of the Russian-American Company) from 1787 to 1791.
From Wikipedia, CC BY-SA 4.0
Census, cataloged
- Major islands4
- Minor islands9
- Islets42
- Rocks & skerries34
Major islands
Gareloi Island
- Area
- 66.8 km²
- High point
- 1,530 m
Gareloi (Russian: Горелый) or Anangusook (Aleut: Anangusix̂) is a volcanic island in the Delarof Islands of the Aleutian Islands of Alaska. It is located between the Tanaga Pass and the Amchitka Pass.
Amatignak Island
- Area
- 34.2 km²
- High point
- 566 m
Amatignak Island (Aleut: Amatignax̂; Russian: Амактигнак) is a member of the Delarof Islands (western Andreanof Islands), in Alaska's Aleutian archipelago. The southernmost point of Alaska is on this island, as well as the westernmost longitude of Alaska, the United States, and North America.
Ulak Island
- Area
- 31.3 km²
- High point
- 164 m
Ulak Island (Aleut: Yuulax̂) is an island in the Delarof Islands subgroup of the Andreanof Islands in the Aleutian Islands chain of Alaska.
Kavalga Island
- Area
- 13.7 km²
- High point
- 92 m
Kavalga Island (Aleut: Qavalĝa) is an island in the Delarof Islands subgroup of the Andreanof Islands in the Aleutian Islands chain of Alaska. The island is 9 km (5.6 mi) long and its highest point is 40 m (130 ft). It is located between the islands of Unalga to the west and Ogliuga to the east.
Minor islands
Ogliuga Island
- Area
- 9.7 km²
- High point
- 19 m
Skagul Island
- Area
- 4.4 km²
- High point
- 25 m
Unalga Island
- Area
- 2.3 km²
- High point
- 71 m
Ilak Island
- Area
- 1.5 km²
- High point
- 55 m
Unnamed island
- Area
- 0.29 km²
- High point
- 39 m
Tanadak Island
- Area
- 0.28 km²
- High point
- 10 m
Unnamed island
- Area
- 0.19 km²
- High point
- 17 m
Gramp Rock
- Area
- 0.18 km²
- High point
- 7 m
Ugidak Island
- Area
- —
size unknown
Islets
- Unnamed island28 m · 0.1 km²
- Unnamed island8 m · 0.08 km²
- Unnamed island2 m · 0.06 km²
- Unnamed island10 m · 0.06 km²
- Unnamed island1 m · 0.05 km²
- Unnamed island12 m · 0.04 km²
- Unnamed island3 m · 0.04 km²
- Unnamed island5 m · 0.03 km²
- Unnamed island6 m · 0.02 km²
- Unnamed island0.02 km²
- Unnamed island1 m · 0.01 km²
- Unnamed island1 m · 1 ha
Rocks & skerries
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
Figures
Comparative heights
To the same scale
Islands by area
| Gareloi Island | 66.8 km² |
| Amatignak Island | 34.2 km² |
| Ulak Island | 31.3 km² |
| Kavalga Island | 13.7 km² |
| Ogliuga Island | 9.7 km² |
| Skagul Island | 4.4 km² |
| Unalga Island | 2.3 km² |
| Ilak Island | 1.5 km² |
| Unnamed island | 0.29 km² |
| Tanadak Island | 0.28 km² |
| Unnamed island | 0.19 km² |
| Gramp Rock | 0.18 km² |
| Unnamed island | 0.1 km² |
| Unnamed island | 0.08 km² |
| Unnamed island | 0.06 km² |
| Unnamed island | 0.06 km² |
| Unnamed island | 0.05 km² |
| Unnamed island | 0.04 km² |
| Unnamed island | 0.04 km² |
| Unnamed island | 0.03 km² |
| Unnamed island | 0.02 km² |
| Unnamed island | 0.02 km² |
| Unnamed island | 0.01 km² |
| Unnamed island | 1 ha |
| Unnamed island | 1 ha |
| Unnamed island | 0.9 ha |
| Unnamed island | 0.9 ha |
| Unnamed island | 0.6 ha |
| Unnamed island | 0.6 ha |
| Unnamed island | 0.5 ha |
| Unnamed island | 0.5 ha |
| Unnamed island | 0.5 ha |
| Unnamed island | 0.4 ha |
| Unnamed island | 0.4 ha |
| Unnamed island | 0.4 ha |
| Unnamed island | 0.4 ha |
| Unnamed island | 0.3 ha |
| Unnamed island | 0.3 ha |
| Unnamed island | 0.3 ha |
| Unnamed island | 0.3 ha |
| Unnamed island | 0.3 ha |
| Unnamed island | 0.3 ha |
| Unnamed island | 0.3 ha |
| Unnamed island | 0.2 ha |
| Unnamed island | 0.2 ha |
| Unnamed island | 0.2 ha |
| Unnamed island | 0.2 ha |
| Unnamed island | 0.1 ha |
| Unnamed island | 0.1 ha |
| Unnamed island | 0.1 ha |
| Unnamed island | 0.1 ha |
| Unnamed island | 0.1 ha |
| Unnamed island | 0.1 ha |
| Unnamed island | 0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
Groups within
Photographs

Ulak Island, Delarof Islands, Aleutian Islands, Alaska, United States
Hillebrand, Steve, U.S. Fish and Wildlife Service / Public domain

Amatignak Island coming into view.
Ulak-Island II, Aleutian Islands
Gareloi Island, Aleutian Islands

Gareloi Volcano, elevation 1573 m, in the westeren Aleutian Islands, Alaska. Levied lava flows from a 1980s eruption drape the south flank of the southern summit crater. The white zone on the crater headwall is an extensive fumarole field.

Hillebrand Steve, U.S. Fish and Wildlife Service / Public domain
Sources
Facts
Photographs
- Ulak Island Delarof Islands. Hillebrand, Steve, U.S. Fish and Wildlife Service / Public domain
- Amatignak coast. D. Sikes from Fairbanks, USA / CC BY-SA 2.0
- Ulak-Island. NASA / Public domain
- Gareloi-Island. NASA / Public domain
- Gareloi. USGS - McGimsey R.G. / Public domain
- View from the steep banks of a small boat in the water below. Hillebrand Steve, U.S. Fish and Wildlife Service / Public domain