Kusilvak topographic map

The foundation rocks on the Alaska Peninsula are divided by the Bruin Bay Fault into fossiliferous sedimentary rocks of Jurassic and Cretaceous age to the east and metamorphic and igneous rocks to the west. The granite Aleutian Range batholith has intruded through these rocks. The majority of the higher…

Average elevation: 245 m

The park is not accessible by roads. Access is solely by air taxi or by boat along the Cook Inlet coast and Lake Clark. Since much of the movement in the area is by air, the mountains present a significant barrier to air traffic. Lake Clark Pass, at 1,050 feet (320 m) provides a way through the mountains by…

Average elevation: 671 m

Average elevation: 1,980 m

Average elevation: 214 m

Average elevation: 581 m

Average elevation: 34 m

Unalaska is the second-largest island in the Fox Islands group and the Aleutian Islands. The coastline of Unalaska is markedly different in appearance than other major Aleutian Islands, with numerous inlets and peninsulas. The irregular coastline is broken by three long deep bays, Beaver Inlet, Unalaska Bay,…

Average elevation: 74 m

Average elevation: 12 m

Average elevation: 23 m

Average elevation: 123 m

Average elevation: 571 m

According to the Köppen climate classification system, Kobuk Valley National Park has a Subarctic climate (Dfc) with cool summers and year around precipitation. Dfc climates are defined by their coldest month averaging below 0 °C (32 °F) , 1–3 months averaging above 10 °C (50 °F), all months with…

Average elevation: 331 m

Average elevation: 1,361 m

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Average elevation: 110 m

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Average elevation: 1,691 m

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Average elevation: 88 m

Renamed "Skira", the island was used as the setting for the Codemasters video game Operation Flashpoint: Dragon Rising. The fictionalized version of the island is relocated closer to Russia and China, but the island's topography is replicated almost exactly.

Average elevation: 40 m

Average elevation: 81 m

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Average elevation: 655 m

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Average elevation: 85 m

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Average elevation: 316 m

Average elevation: 370 m

Tussock tundra dominates the terrain surrounding the lake. Other plant communities in the area include wet sedge tundra, as well drier heath tundra found at higher elevations. Low growing shrubs are abundant, including birches and willows. Trees are not present. Since surveys began, there has been a 19 percent…

Average elevation: 731 m

Average elevation: 3 m

Hayes River is a weather station near Skwentna to the northeast, at an elevation of 1,000 feet (300 m). Hayes River also has a subarctic climate (Köppen Dfc) but has a lower seasonal temperature variation and receives substantially more snow.

Average elevation: 203 m

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 elevation: 64 m

Average elevation: 2 m

Average elevation: 6 m

Average elevation: 960 m

Average elevation: 1,104 m

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Average elevation: 33 m

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Average elevation: 980 m

Average elevation: 581 m

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Average elevation: 44 m

Average elevation: 3 m

Trapper Creek is a community located in Matanuska-Susitna Borough at latitude 62.317 and longitude -150.231, with an elevation of 351 ft (107 m). It is at mile 114.5 on the Parks Highway, just south of Denali State Park. Trapper Creek is found at the intersection of Petersville Road and is spread out along the…

Average elevation: 235 m

Average elevation: 39 m

Denali State Park is in sight of Denali, the highest mountain peak in North America, with a summit elevation of 20,310 feet above sea level. Denali rises 18,000 feet from base to peak, making it the largest mountain situated entirely above sea level. To the east, the state park borders the Susitna River, which…

Average elevation: 702 m

Average elevation: 1,050 m

Average elevation: 534 m

Average elevation: 724 m

Average elevation: 42 m

Average elevation: 156 m

Average elevation: 90 m

Average elevation: 4 m

Average elevation: 217 m

Average elevation: 160 m

Despite the extreme northern location, temperatures at Utqiagvik are moderated by the surrounding topography. The Arctic Ocean is on three sides, and flat tundra stretches some 200 mi (320 km) to the south. No wind barriers or protected valleys exist where dense cold air can settle or form temperature…

Average elevation: 4 m

Average elevation: 23 m

Average elevation: 151 m

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Average elevation: 296 m

Average elevation: 859 m

Average elevation: 316 m

Average elevation: 752 m