Overview
Saint Paul Lake occupies a cirque basin below Saint Paul Peak in the southern portion of the Cabinet Mountains Wilderness, reached via an 8.2-mile round trip from a trailhead in the Kootenai National Forest. The trail is less used than the northern Cabinet approaches and the solitude at the lake is exceptional by any measure. Located in Montana's Lincoln County, this drainage is documented grizzly bear and wolverine habitat.
The southern Cabinets receive less visitor attention than the Leigh Creek area, partly because the trailhead access road is rougher and the approach longer. The forest here is old-growth cedar in the lower drainage with larch-fir transition in the middle section and open sub-alpine terrain near the lake. The combination creates one of the Kootenai's most complete wilderness experience routes.
The Route
Trailhead to Lower Cedar Zone (0 to 2.0 miles)
The trail begins in dense cedar-hemlock forest similar to the Ross Creek grove character, with large-diameter trees and a closed canopy. The lower drainage is creek-side walking with multiple water access points. Grizzly sign is common in the meadow pockets.
Larch Zone and Mid-Canyon (2.0 to 3.5 miles)
Western larch appears at higher elevation and provides spectacular fall color in October. The canyon steepens in this section and the trail becomes more demanding. The creek narrows and the canyon walls rise.
Upper Basin Approach and Saint Paul Lake (3.5 to 4.1 miles)
The trail reaches the cirque below Saint Paul Peak and climbs the final rocky headwall to the lake. The granite basin is open and Saint Paul Peak is visible above the north shore. The lake is cold and holds native trout. Return via the same route.
When to Hike
July through September offers the most reliable conditions. Heavy snowpack years may keep the upper basin under snow into late July. September is excellent for solitude and fall larch color in the mid-canyon.
What to Bring
Bear spray kept readily accessible is essential. Many hikers carry 3 liters of water with creek filtration available en route. The upper basin is cold and windy even in summer. Review bear canister requirements for overnight use.
No restroom is present at the trailhead. Plan accordingly.
Trailhead Access
Saint Paul Creek Trailhead is in the southern Cabinet Mountains area, reached from Highway 200 or local forest roads. High-clearance vehicle recommended. No permit or fee required (as of 2026). No restroom. Space for 10 to 12 vehicles.
Dogs must be under immediate control at all times in this grizzly recovery zone.
Nearby
Saint Paul Lake is the quiet alternative to the northern Cabinet trails. Leigh Lake Trail and Cabinet Mountains Loop are in the northern Cabinets with more established access. Hawkins Lakes Trail is in the Purcell Mountains area of the northeastern Kootenai for a different lake basin experience.
Check conditions and grizzly activity reports using the USFS guide. Follow Leave No Trace principles carefully in this sensitive habitat.