Lake Mary Trail

Overview

If you want variety in one outing—thundering falls, broad wildflower meadows, and a high, blue alpine lake—this one overdelivers. The Lake Mary Trail is an 11.7‑mile total out‑and‑back that follows the West Fork of Rock Creek before a steep spur climbs to Lake Mary near 9,960 feet. Plan on 6–6.5 hours if you keep a steady pace with photo stops.

Route and highlights

Start at the West Fork (Rock Creek) trailhead at the end of West Fork Road. The first ~1.5 miles cross a burn area (big views, little shade) before you reenter mature forest. Watch for side views of Calamity Falls (~1.3 mi) and Sentinel Falls (~1.8 mi) as you work up the valley. Around mile four you’ll break into Quinnebaugh Meadows—broad, beautiful, and a natural snack spot. Look to the right for the signed turn to Lake Mary; from here, it’s just over a mile of steady switchbacks to the lake. The basin holds two connected lakes with rocky shoreline and big vistas back down the West Fork valley.

Trail feel and difficulty

Underfoot it’s mostly smooth singletrack with occasional rocky ribs; the final mile‑plus is the crux—steeper, rockier, and slower going. Trekking poles shine here, especially for the descent. You’ll feel the altitude on that upper section, and the breeze can funnel through the basin even on warm days.

Best time to hike

Late June through September is the sweet spot most years. Early season can linger with snow and even a mostly frozen lake, and weather can shift fast regardless of month. Mornings offer calmer winds, cooler temps through the burn, and softer light on the meadows and falls. The broader Beartooth corridor can see winter conditions into June and again by mid‑October; always check the forecast before you commit to the drive.

Planning tips

• Start early and bring layers; it can be 20°F colder higher up, and storms roll in quickly.
• Bugs show up in summer—pack repellent.
• Dogs are allowed; keep them leashed and practice strict food storage. This is grizzly country.
• You’re in the Absaroka–Beartooth Wilderness: follow group size, camp, and fire regulations if you’re lingering.

Is it worth it?

Yes—this is a classic Beartooth sampler. The combo of waterfalls, meadow walking, and a dramatic alpine finish feels bigger than a single‑day effort. If you’re already driving the Beartooth Highway for the views, this hike adds a rewarding, leg‑stretching centerpiece to the day.