Interior Yukon–Alaska alpine tundra
| Interior Yukon-Alaska alpine tundra | |
|---|---|
Eagle Summit, Steese National Conservation Area, Alaska | |
Ecoregion territory (in green) | |
| Ecology | |
| Realm | Nearctic |
| Biome | Tundra |
| Geography | |
| Area | 233,172 km2 (90,028 sq mi) |
| Country | United States, Canada |
| Coordinates | 64°45′N 143°45′W / 64.75°N 143.75°W |
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The Interior Yukon–Alaska alpine tundra ecoregion (WWF ID: NA1111) covers alpine, sub-alpine, and boreal forest areas along the cordillera (chain of mountain ranges) of Interior Alaska and south-central Yukon Territory. Geologically, they are the disjunct uplands of the Yukon–Tanana terrane plus a southern extension of the Brooks Range. The cover is extensive 'dark taiga' of closed spruce forest, open forest of other species (aspen, willow, pine, fir), and alpine vegetation at higher altitudes. The region is mostly wilderness and relatively untouched by human development.