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Umnak Island topographic map
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Umnak Island
Umnak, the third largest of the Aleutian Islands after Unimak and Unalaska, lies in the Fox Islands of the Aleutian Islands of the Bering Sea, to the southwest of the larger island of Unalaska. It is approximately 70–72 miles (113–116 km) in length (117 kilometres (73 mi)) and 16 miles (26 km) wide on average. The island was separated in the last glacial period and now lies about 300 kilometres (190 mi) from North American shores. It is an active volcanic island, with a land area of 1,793.2 km2 (692.4 sq mi) and with a coastline extending over 330.2 kilometres (205.2 mi). The elevation of the island is 2,132 metres (6,995 ft). The island is very mountainous with a low level of vegetation. The island does not have a harbor, although a sizeable bay is located in the western part of the island and contains the Adugak Island. The southern point of the island is known as Cape Sagak.
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About this map
Name: Umnak Island topographic map, elevation, terrain.
Average elevation: 64 m
Minimum elevation: -3 m
Maximum elevation: 2,004 m
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Mount Okmok
United States > Alaska > Unorganized Borough
After a period of quiescence, an intense eruption took place at Okmok in 43 BCE. A rhyodacitic eruption column rose over the volcano from a vent in its northern part. Pumice lapilli fell out from the eruption column. The fallout was emplaced in three distinct units, with a brief break between the first two…
Average elevation: 713 m
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United States > Alaska > Unorganized Borough
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United States > Alaska > Unorganized Borough
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United States > Alaska > Unorganized Borough
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United States > Alaska > Unorganized Borough > Diomede > Diomede
Average elevation: 160 m
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Kasatochi Island
United States > Alaska > Unorganized Borough
Kasatochi Island is a member of the Aleutian Islands, which lie above a narrow ridge that separates the Bering Sea from the North Pacific. It lies at the Atka Pass northwest of the western tip of Atka Island and east of Great Sitkin Island. It is at 52.177° N latitude and 175.508° W longitude, with a summit…
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Eagle Summit
United States > Alaska > Unorganized Borough
It was for this latter reason that engineers chose Eagle Summit as the route to build the Steese Highway, which connects Fairbanks, Alaska to the Yukon River at Circle. In 1927, just 11 years after Stuck became one of the first Americans to navigate Eagle Summit on dog sled, the highway was completed and road…
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