Kersey Lake Trail

Overview

A short, mellow out-and-back that earns its keep with a roaring bridge crossing and a quiet lakeshore finish. The hike is 2.9 miles total (round-trip) with about 291 feet of gain, usually taking 1–1.5 hours. Expect mostly gentle grades and forested tread.

What You’ll See

Right away you cross an impressive bridge over the Clarks Fork Yellowstone River—thundering water, safe footing. The path then meanders through cool timber before reaching Kersey Lake. The lake can be muddy along the edge, but it’s a peaceful spot to linger, watch for rising trout, and scan for wildlife. This corridor is known for bears, moose, deer, and eagles, so keep your head on a swivel and your camera handy.

Trail Feel and Conditions

This is an easy walk, but not pristine: sections get muddy (especially after rain or early season), parts are rocky, and the shared stock route can mean churned tread and manure. Mosquitoes pick up beyond the lake—plan bug protection if you’re continuing farther. Early in the year the outlet near the lake can flood a bit; there are often logs to cross.

Best Time to Hike

Late May through early October is the sweet spot. The highway corridor typically closes in winter and can even see surprise snow in summer. Crowds are light to moderate; mid-summer is busiest, while shoulder seasons bring more mud and fickle weather. Afternoon thunderstorms are common—start early and be back before the sky turns dramatic.

Navigation and Parking

Start from the Clarks Fork Trailhead off the Beartooth Highway. Follow signs for Russell Creek/Clarks Fork; about two-thirds of a mile in, a small sign points left to Kersey Lake. Parking is straightforward and there’s a restroom at/near the trailhead.

Who Will Like It (and Who Won’t)

Great for families, casual hikers, and anyone craving a low-effort forest-and-lake stroll. If you’re chasing big, open vistas, this one may feel hemmed in by trees until you’re literally at the water.

Optional Extensions

For more mileage and quieter feels, continue past Kersey to Rock Island Lake (about 6.9 miles round-trip total, ~711 feet of gain). Expect thicker tree cover, more mud, and notably heavier mosquitoes. The trailhead also serves the long “Beaten Path” trek if you’re plotting a much bigger adventure.

Tips

Carry bear spray and give wildlife space. Waterproof or quick-dry shoes help with mud and the occasional wet crossing. Bring strong bug spray in midsummer. Check current road and weather conditions before you go, and practice Leave No Trace.