American Mink (Mustelidae; Mustela vison): Nocturnal and fairly common along streams and lake shores; year-round

*Bats (Little Brown Bat; Vespertelionidae; Mycotis lucifugus): dusk-dawn around the cabins; May to October

*Beaver (Castoridae; Castor canadensis): On the drive in from Highway 40 on the Rock Lake Road, canoe trip between Blue Lake and Gregg Lake; spring to fall.

*Big Horn Sheep (Bovidae; Ovis canadensis): Binocular Ridge and the alpine meadow hike; spring to fall

*Black Bear (Ursidae; Ursus americanus): Most common in montane woods; spring and late summer/early fall; May to November

Cougar/Mountain Lion/Puma (Felidae; Felis concolor): Tracks seen at the 'Escape clearing, on the Munn Creek Trail and on the Mountain Shadow Trail; year-round

*Coyote (Canidae; Canis latrans): Seen along the Rock Lake Road, Highway 40 and the Mountain Shadow Trail; year-round

*Elk/Wapiti (Cervidae; Cervus elaphus): Rock Lake and surrounding bald hills; year-round

*Ermine/Short-tailed Weasel (Mustelidae; Mustela erminia): Nocturnally common along the trail to the alpine meadow and Munn Creek Trail; year-round

Fisher (Mustelidae; Martes pennanti): Rare in subalpine forest, usually near water; year-round

*Golden-mantled Ground Squirrel (Sciuridae; Spermophilus lateralis): rock outcropping on the alpine meadow; spring to fall.

*Grizzly Bear (Ursidae; Ursus arctos): Valley floors in spring and late summer/early fall, above treeline in summer and late fall; March to November

*Hoary Marmot (Sciuridae; Marmota caligata): Munn Creek pass into Willmore Wilderness; summer and fall

*Least Chipmunk (Sciuridae; Eutamias minimum): woodpiles; spring to fall

Least Weasel (Mustelidae; Mustela nivalis): Nocturnal in meadows and mixed forest; year-round

Long-tailed Weasel (Mustelidae; Mustela frenata): Nocturnal in open meadows; year-round

Lynx (Felidae; Felis lynx): Tracks and scat seen at the 'Escape clearing and on the trail to the alpine meadow; year-round

*Marten (Mustelidae; Martis americana): Nocturnal in and around the horse pasture at the 'Escape, occassionally seen during the day; year-round

*Mice (Deer Mouse; Cricetidae; Peromyscus maniculatus and House Mouse; Muridae; Mus musculus): as for Shrews; year-round

*Moose (Cervidae; Alces alces): Rock Lake lowlands and the Rock Lake Road between the Wild Hay Group Camp and Doctor Creek; spring and fall

*Mountain Goat (Bovidae; Oreamnos americanus): Occasional on Binocular Ridge; spring to fall

*Mule Deer (Cervidae; Odocoileus hemionus): Montane woods and brushy meadows around the 'Escape; year-round

*Muskrat (Cricetidae; Ondatra zibethicus): Rock Lake/Willmore Wilderness staging area, Rock Lake Lookout; spring to fall

*Northern Flying Squirrel (Sciuridae; Glaucomys sabrinus): Nocturnal at Rock Lake; spring to fall

*Porcupine (Erethizontidae; Erethizon dorsatum): uncommonly seen at dusk on the lower bench adjacent to Munn Creek; year-round

*Red Fox (Canidae; Vulpes vulpes): A family has lived at Doctor Creek on the Rock Lake Road; spring and fall, tracks seen in the winter along the Rock Lake Road

*Red Squirrel (Sciuridae; Tamiasciurus husonicus): in the trees around the cabins; year-round

River Otter (Mustelidae; Lontra canadensis): Occasional around Rock Lake and the Wild Hay River; year-round (Otter "play" tracks seen at Rock Lake in the winter)

*Snowshoe Hare (Leporidae; Lepus americanus): Common on trails around the 'Escape; year-round

*Shrews (Pygmy Shrew; Soricidae; Microsorex hoyi): grassy subalpine meadows and drier forest floors (sometimes in the cook tent or my cat's jaws); year-round

*Timber Wolf (Canidae; Canis lupus): Rock Lake, Munn Creek Trail, Mountain Shadow Trail; winter

*White-tailed Deer (Cervidae; Odocoileus virginianus): Montane woods and brush meadows around the 'Escape; year-round

*Wolverine (Mustelidae; Gulo gulo): Occasional at subalpine and alpine elevations, in nearly any habitat; year-round

*Woodland Caribou (Cervidae; Rangifer tarandus): On Highway 40 between the Rock Lake turnoff and Grade Cache; winter.