BLM 20 is about 2.1 miles long, or about 4.3 miles out and back, based on mapped trail data.

How much elevation gain is on BLM 20?

About 628 feet of climbing out and back. The trail runs between 5,142 and 5,407 feet above sea level.

How long does it take to hike BLM 20?

Plan on about 2 hr at an easy pace for the round trip, counting time for the climbs. Fast hikers will be quicker, and families with kids slower.

What can you do on BLM 20?

BLM 20 is open to biking and dirt bikes, according to OpenStreetMap contributors.

Where does BLM 20 start?

One end of the mapped trail is at 45.92001, -112.28245. Use the Directions button to get there.

BLM 20

Mountain bike trail near Whitehall, Montana

Biking Mountain biking Dirt bikes

Length2.1 mi4.3 mi out and back

Climb628 ftround trip

Ride time1 hrround trip

DifficultyEasymapped

DogsUnknowntell us below

Directions

Trail conditions

No recent reports. Been out today? Tap what you saw.

Today at the trail

National Weather Service forecast

Getting there

No parking, restrooms or water are mapped at the start yet. Check before you go.

Trail start coordinates: 45.92001, -112.28245

Directions

Trail facts

Open to: Biking, Dirt bikes
Shape: One way
Elevation: 5,142 to 5,407 ft
Surface: Dirt
County: Jefferson County, Montana

Montana ATV and dirt bike rules

Registration: Yes. Permanent OHV decal registration via county treasurer or MVD.
Visiting from out of state: Yes. Nonresident Temporary Use Permit $35, calendar year, FWP online or offices.
Trail pass: Resident OHV Trail Pass $20 (up to 2 years) for designated public land routes.
Helmets: Under 18 on streets/highways must wear a DOT or Snell helmet.
Young riders: Ages 12 to 15 may ride trails/unpaved roads with safety certificate and licensed supervision. Under 12 with an adult.
Safety course: Required for ages 12 to 15 without a license.
UTVs / side-by-sides: Same permits apply to side-by-sides.
Good to know: Nonresident permit is trail-only.

Source: Montana FWP, checked 2026-11-06. Rules change, so check the agency link before you ride.

Can I bring my dog?

We don't have dog rules for this trail yet. Check signs at the trailhead or the land manager's website.

Reviews and photos

No reviews yet. Been here? Tell other visitors how it was and whether dogs are allowed.

Camping nearby

Toll Mountain Campground 6.5 mi away · Directions
High Rye Cabin 27 mi away · Directions · Reserve

Federal campgrounds from Recreation.gov. Check dates and fees before you go.

Nearby trails

BLM 16 2.5 mi long
BLM 1 1.2 mi long
BLM 15 0.5 mi long
BLM 18 2.7 mi long
WELCH 0.2 mi long
BLM 14 4.9 mi long

More trails

Common questions

How long is BLM 20?: BLM 20 is about 2.1 miles long, or about 4.3 miles out and back, based on mapped trail data.
How much elevation gain is on BLM 20?: About 628 feet of climbing out and back. The trail runs between 5,142 and 5,407 feet above sea level.
How long does it take to hike BLM 20?: Plan on about 2 hr at an easy pace for the round trip, counting time for the climbs. Fast hikers will be quicker, and families with kids slower.
Are dogs allowed on BLM 20?: We don't have dog rules for this trail yet. Check signs at the trailhead or the land manager's website.
What can you do on BLM 20?: BLM 20 is open to biking and dirt bikes, according to OpenStreetMap contributors.
Where does BLM 20 start?: One end of the mapped trail is at 45.92001, -112.28245. Use the Directions button to get there.

Source: OpenStreetMap contributors (view or fix on OpenStreetMap). Elevation from USGS data via AWS Terrain Tiles. Times are estimates. Length and route come from mapped data and may differ from signs on the ground. Always check for closures before you go.

Directions