This pleasant trail winds upward through forest to subalpine lakes and tundra slopes.

Willow ptarmigan

Arctic grayling

NOTABLE SPECIES

Arctic grayling
Beaver
Black bear
Dall sheep
Spruce grouse
Willow ptarmigan
Boreal chickadee
Golden-crowned kinglet
Ruby-crowned kinglet
Swainson’s thrush
Hermit thrush
Varied thrush
American pipit
Townsend's warbler

FIELD NOTES Townsend’s warblers and both species of kinglet nest in the forest around the lower portion of the trail. Compare the songs of varied, Swainson’s and hermit thrushes in the mixed forest in early summer. Moose browse in openings. Black and brown bears traverse the trail and may be seen at any time. Watch for scat with berries and grass stems in it. In Lower Fuller Lake, feeding grayling dimple the lake surface in the evening, while beavers leave v-shaped wakes. Glass the mountainsides for Dall sheep. Open tundra with easy off-trail hiking begins at Upper Fuller Lake, offering a chance to view Dall sheep more closely and to find alpine-nesting birds such as willow ptarmigan and American pipits.

HABITAT The trail packs several distinct habitats into its 1,400 foot climb in elevation: mature mixed white spruce forest with stands of mountain hemlock, wet brushy creek bottom sites with cow parsnip and devil’s club, alder and willow brush on open slopes and lake edges, and a subalpine lake.

ANCIENT TREES Fuller Lake Trail, a popular but strenuous hike, leads to some of the oldest trees in the area. According to core samples taken by federal biologists, some of the mountain hemlocks growing near tree line at Upper Fuller Lake sprouted in the 1500s.

VIEWING TIP Walk the trail slowly and listen for bird songs in the tall trees. Don’t be put off by the initially steep stairway at the trailhead; the trail levels off gradually in the forest.

GETTING THERE Fuller Lakes trailhead is on the north side of the Sterling Highway at milepost 57.