Montana trails · Sentinel Creek Trail
A 10.3-mile out-and-back in Montana, with 2,744 ft of climbing. Reaches Crag Lake and other lake destinations.
The climbing is spread fairly evenly along the route.

USGS 3DEP ELEVATION × ESRI WORLD IMAGERY · VERTICAL ×1.5
POTOMAGETON PARK — parking nearby, restroom, water. 44.92747, -111.36015 · directions
On August 31, 2026 — the day this page was generated — first light reaches this trailhead at 6:15 a.m., the sun rises at 6:46 a.m. and sets at 8:04 p.m., and the last usable light fades about 8:34 p.m. (MDT) — 13 h 18 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 20.7-mile round trip takes roughly 10 h 25 min, so leaving the trailhead at sunrise puts you back around 5:10 p.m. — 2 h 54 min before sunset.