Boulder Pass Trail
~3 days · 29.5 mi · hard · Point-to-point
Quick facts
What the Boulder Pass Trail is known for
Point-to-point route through the remote northwest corner of Glacier National Park, following Kintla Lake and Upper Kintla Lake before climbing over Boulder Pass, passing Hole-in-the-Wall, and crossing Brown Pass to finish in the Waterton Valley near Goat Haunt. About 30 miles one-way with sustained alpine scenery along the Continental Divide. Backcountry campgrounds (permit required) are spaced along the route; most parties take 3-4 days.
Elevation profile
Elevation ranges from 13,163 ft to 24,488 ft over 29.5 mi. Measured from OSM geometry (approximate).
- Uphill 10.3 mi · 35%
- Downhill 12.9 mi · 44%
- Flat 6.3 mi · 21%
Ridgefold breaks every route into uphill, downhill, and flat — see the full per-day breakdown in the app.
Frequently asked questions
How many days does the Boulder Pass Trail take?
Most backpackers hike the Boulder Pass Trail in about 3 days (2 nights out) over its 29.5 miles, though pace varies with fitness and conditions.
How much elevation gain is on the Boulder Pass Trail?
The Boulder Pass Trail climbs roughly 4,813 ft total — about 163 ft per mile, topping out near 7,507 ft.
Related trails
Sources & attribution
Route geometry and stats derived from OpenStreetMap (© OpenStreetMap contributors, ODbL) — source relation. Stats are approximate and may differ from official surveys; permit rules and conditions change — verify with the managing authority before your trip. Last reviewed July 2026.