
Place
Challenging
This is the Beartooth Highway side of the classic Beaten Path, climbing from the Clarks Fork Trailhead along clear, rushing Russell Creek to the broad Beartooth Plateau near Fossil Lake. It’s a 10.3‑mile one‑way segment with about 1,942 feet of ascent, forming the west half of the 26‑mile point‑to‑point traverse.
Expect a quick taste of meadows and boardwalks near Kersey Lake before the trail tucks into lodgepole forest—some of it showing old burn from the 1988 Yellowstone fires. The path then hugs Russell Creek into a narrowing canyon, reaching busy-but-pretty Russell Lake about 6–7 miles in. Above, the grade carries you through a marshy bench and past a string of lakes (Ouzel, Bald Knob, Skull) as the scenery opens to granite walls, boulder fields, and big alpine views on approach to the nearly 10,000‑foot plateau around Fossil Lake.
From Clarks Fork to the plateau is 10.3 miles one way with roughly 1,942 feet of climbing and high elevation throughout. It’s a steady, moderate-to-strenuous ascent at altitude—easier overall than starting from East Rosebud, but no pushover.
The prime window is July through September, when snow has mostly pulled back from the high country. Earlier in summer, expect lingering snow patches, swollen creeks, and voracious mosquitoes; late season can bring cold mornings and fast-moving storms even on bluebird forecasts. Wildfire smoke can reduce views some years.
Park at the Clarks Fork Trailhead directly off the Beartooth Highway (US‑212).
Grizzly country; carry bear spray and store food. High-elevation weather shifts quickly—expect cold mornings, sudden rain, and potential smoke. Early season can mean snow patches and wet, chilly creek crossings. No campfires from Twin Outlets Lake to Fossil Lake.
