
The Beula Lake Trail is a moderate 2.7 mile hike in southern Yellowstone National Park that culminates in a beautiful lake popular for its fishing potential. The trail begins in the Caribou-Targhee National Forest before crossing the Yellowstone National Park boundary.
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Beula Lake Trail Description
From the trailhead, the trail quickly begins ascending up the hill. Through the beautiful forest, you’ll drop into a small drainage before climbing out the opposite side. The ascent is steady as you head uphill, sometimes more steep than others. A more gradual ascent brings you to a junction with the South Boundary Trail at 0.6 miles in. Continue straight to head to Beula Lake.
The easy gradual ascent soon levels out for a long stretch of easy hiking through the woods. Over the next two miles, you’ll hike consistently through the forest with few landmarks to break up the consistency of the woods. There will be an occasional but brief ascent and descent as the terrain varies slightly in elevation, but nothing of any significance.

After 2 miles from the junction, you’ll begin to make out the lake through the trees. This is quickly followed by a steep descent down to the lake where the crystal clear waters sprawl out before you. Spur trails lead out to great vantage points of the lake itself. Sit and enjoy the scenery, and when ready, head back out the same way you hiked in.
Getting There
From Flagg Ranch, head west on Grassy Lake Road for 9 miles. Look for the small trailhead parking area on your right just before reaching Grassy Lake, which you’ll see through the trees on the left. A trail kiosk will be visible a short distance up the trail.