Free — you'll pick up right here.
Watch this trail
Sign up to watch it — saving subscribes you to gate, closure and report changes.
Montana
10.3 mi
Distance
624 ft
Gain
We won't guess. Here is exactly what we do and don't know.
What we do know
Inside Lolo National Forest
2 managing-area boundaries mapped — agency alerts for them feed this page automatically.
Boundary data
What's missing
No access route mapped
We don't yet know which road reaches this trailhead, so we can't tell you if it's gated.
Nobody's filed a report here yet — be the first.
Why you'll love it
North O'brien Loop
AI-suggested draft · review before you go
No permit or access details on file for this trail — check with the local land manager before you go.
North O'brien Loop — Montana, 10.3 mi.
Blue Mountian Bike A
~6 min drive
1.5 mi · Easy
Maclay Flat Nature Loop
~6 min drive
1.8 mi · Moderate
Blue Mountain Bike C
~6 min drive
2.5 mi · Moderate
Blue Mountain Bike B
~7 min drive
4.0 mi · Moderate
Crooked Trail
~16 min drive
7.1 mi · Hard
Lolo Peak
~16 min drive
7.7 mi · Hard
Hellgate Canyon
~17 min drive
6.1 mi · Hard
University Mountain Tie
~17 min drive
2.6 mi · Easy
Elk Mdws-Spruce Cr Snowmo Tr#3
~17 min drive
31 mi · Hard
Sawmill Gulch, Wooten Ranch
~18 min drive
2.7 mi · Easy