Big Spar Lake

Embark on the Spar Peak and Big Spar Lake Loop, a difficult 13.5-mile (21.7 km) hike that challenges you with 3615 feet (1102 metres) of elevation gain. This route typically takes around 7 hours and 26 minutes to complete. You will experience steep climbs through dense cedar and hemlock forests on your way to Spar Peak. From the summit, enjoy expansive views of Sawtooth Mountain and the Cabinet Mountains. The trail then descends to Big Spar Lake, where you can walk through a pleasant cedar forest, including an old-growth grove along Spar Creek, with glimpses of the shimmering water.

Prepare for a demanding day on the trail, especially the Spar Peak section, which features steep, brushy terrain and loose rocks. Creek crossings, such as Cub Creek, can vary in difficulty depending on the season; always check current conditions before you head out. While the Big Spar Lake portion is often accessible year-round, combining it with Spar Peak makes for a much more strenuous journey. Plan to start early to allow ample time to complete the full loop before dark.

This loop offers a striking contrast between rugged mountain ascents and tranquil lakeside paths within the Kootenai National Forest. The route highlights the diverse ecosystems of the region, from high alpine meadows to ancient cedar groves. It is a prime example of the challenging and rewarding hiking experiences available in this part of Montana. Consider this trail if you are seeking a full-day adventure with varied scenery and significant physical exertion.

Hike the difficult 13.8-mile Big Spar & Little Spar Lake Trail loop in Kootenai National Forest, gaining 2832 feet to stunning alpine lakes.