Montana trails · Brian Creek
A 2.9-mile out-and-back in Montana, with 748 ft of climbing. Reaches 05S45E18AACD01 Spring and other spring destinations. Managed by the U.S. Forest Service.
Most of the climbing sits in the final third — 63% of the ascent, between mile 2.0 and mile 2.9. It climbs almost continuously, with little descent to recover on.
Brian Creek access. 45.40411, -106.24587 · directions
On August 31, 2026 — the day this page was generated — first light reaches this trailhead at 5:54 a.m., the sun rises at 6:24 a.m. and sets at 7:44 p.m., and the last usable light fades about 8:15 p.m. (MDT) — 13 h 20 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 5.9-mile round trip takes roughly 2 h 56 min, so leaving the trailhead at sunrise puts you back around 9:20 a.m. — 10 h 24 min before sunset.