• Autumn photo of Lake Clark and the Aleutian Range in Lake Clark National Park & Preserve

    Lake Clark

    National Park & Preserve Alaska


tree-less green hills leading up to a jagged, steep mountain covered in snow
Tundra extends west from the Neacola Mountains on their western flank.
NPS Photo / A. Lindholm

To scientists, tundra is treeless zone with generally low temperatures and a short growing season. Alaskan hikers, on the other hand, know tundra as a welcome relief from alder thickets, bogs, and dense spruce forest.

There are two kinds of tundra in Alaska, alpine and arctic. Arctic tundra is found north of the permafrost line, generally north of the arctic circle. Alpine tundra is found around the state at high elevations - this is the kind found in Lake Clark National Park and Preserve.

Caribou make their homes on the tundra, as do ground squirrels, ptarmigan, red-backed voles, and other animals. Tundra wildflowers are delicate beauties, and mosses and lichens have a wonderful woodsy scent.

Did You Know?

This willow ptarmigan is in the process of changing plumage colors.

Willow ptarmigan, found across southwest Alaska, are white in the winter and brown in the summer. These notoriously slow birds need extra camouflage from predators!