Mappa topografica Koyuk

Altitudine media: 1’350 m

Altitudine media: 467 m

Altitudine media: 310 m

Altitudine media: 72 m

Altitudine media: 852 m

Altitudine media: 171 m

Altitudine media: 643 m

Altitudine media: 1’044 m

Altitudine media: 260 m

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…

Altitudine media: 713 m

Altitudine media: 1’361 m

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Altitudine media: 952 m

Altitudine media: 1’496 m

Altitudine media: 1’980 m

Altitudine media: 1’691 m

Altitudine media: 2’848 m

Modern Mount Wrangell, built upon the remnants of a mid-Pleistocene volcano, has an eruptive history spanning from 750,000 years ago to minor phreatic eruptions in 1884. The shield volcano features an ice-filled caldera 2.5 by 3.7 miles (4 by 6 km) in diameter at the top of Wrangell's broad summit. The caldera…

Altitudine media: 4’013 m

Altitudine media: 4’106 m

Mount Blackburn is a large, dramatic peak, with great local relief and independence from higher peaks. Its west face drops over 11,000 ft (3,350 m) to the Kuskulana Glacier in less than 4 horizontal miles (6.4 km). Its other faces drop 8,000–10,000 ft (2,440–3,050 m), all in less than 8 miles (13 km). The…

Altitudine media: 4’530 m

Mount Sanford was first climbed on July 21, 1938 by noted mountaineers Terris Moore and Bradford Washburn, via the still-standard North Ramp route up the Sheep Glacier. This route "offers little technical difficulty" and "is a glacier hike all the way to the summit" but is still a serious mountaineering…

Altitudine media: 4’221 m

Altitudine media: 4’404 m

Altitudine media: 728 m

Altitudine media: 1’126 m

Altitudine media: 1’619 m

Altitudine media: 830 m

Altitudine media: 41 m

Altitudine media: 70 m

Altitudine media: 337 m

Altitudine media: 2 m

Altitudine media: 620 m

Altitudine media: 359 m

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…

Altitudine media: 1’068 m

Altitudine media: 816 m

Altitudine media: 53 m

Altitudine media: 308 m

Altitudine media: 160 m

Altitudine media: 72 m

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Altitudine media: 879 m

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Altitudine media: 236 m

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Altitudine media: 3’437 m

Altitudine media: 11 m

Altitudine media: 1 m

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…

Altitudine media: 53 m

Altitudine media: 613 m

Altitudine media: 45 m

Altitudine media: 5 m

Altitudine media: 591 m

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Altitudine media: 114 m

Altitudine media: 789 m

Altitudine media: 1’901 m

Altitudine media: 5 m

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Altitudine media: 25 m

Altitudine media: 7 m

Altitudine media: 1’032 m

Altitudine media: 960 m

Altitudine media: 760 m

Altitudine media: 4’221 m

Altitudine media: 5 m

Altitudine media: 78 m

Altitudine media: 532 m

Altitudine media: 133 m

Altitudine media: 221 m

Altitudine media: 1’365 m

Altitudine media: 915 m

Altitudine media: 94 m

Altitudine media: 359 m