Kananaskis Country

Alberta Parks

Kananaskis Conservation Pass is required to park your vehicle in Kananaskis and the Bow Valley


Three Isle Lake

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Trail starts at North Interlakes Day Use area and traverses the north side of Upper Kananaskis Lake, providing access to the northern portion of the Upper Lake Circuit after 0.9 km. At 2.2 km the Upper Lake Connector provides a second access to the Upper Lake Circuit. Bikes are permitted as far as Invincible Creek, located approximately 3.8 km from the trailhead. Beyond Invincible Creek, the trail continues through forested terrain to Forks Backcountry Campground, before climbing a steep headwall and accessing Three Isle Lake Backcountry Campground.


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Open

May 19th: Observed only to Forks campground with trees removed and snow patches to that point. Mainly snow covered beyond Forks with deep snow at higher elevations.

Note: Bikes only permitted to Invincible Creek, 3.8 km from trailhead

Forks Backcountry Campground: Closed Dec 1 - Jun 14.

Three Isle Lake Backcountry Campground: Closed Dec 1 - Jun 24.

Length 10.2 km
Elevation: 580 m (1900 ft)
Group Size Limit: 15 (Permit information)
Difficulty
Summer
Winter
Trailheads
Trail Map Peter Lougheed PP - Three Isle Lake Backcountry Campground Map
Peter Lougheed PP - Three Isle Creek Backcountry Campground Map
Spray Valley & Peter Lougheed Map (Geo Referenced)
Trail Report: Peter Lougheed
Trails: Peter Lougheed | Kananaskis Country | All Parks

Updated: May 21, 2026