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MONTANA 4x4 TRAIL GUIDE · MT-0056

Fairy Lake Road

Forest Road 74 · Bridger Mountains · off MT-86 north of Bozeman, Montana
2/10AGF Difficulty · Easy
~5 MIOne way to the end of the road (USFS); sources differ
NO RVs OR TRAILERS"Not suitable for RV or towed unit travel" (USFS)
USFSBozeman Ranger District
NOT FOR RVs OR TRAILERS, AND THE SEASON ENDS DEC. 1 OR SOONER IF IT SNOWS. The Forest Service says the road is "Not suitable for RV or towed unit travel," recommends a high-clearance vehicle, and warns "Road slippery when wet." Its campground page describes steep gravel. The published season for the campground and trailhead is June 16–Dec. 1, weather dependent (USFS). The 2026 closing date had not been announced as of Oct. 8, 2026, and October snow can make the steep grade impassable before then. Do not attempt it in snow or mud. AGF's record says a seasonal gate controls access, but the Forest Service pages reviewed do not say where the gate is: verify. The road was fully closed for construction in 2026: from April 20, 4.6 miles from the winter parking lot (about mile marker 1.4) to the trailhead were closed to vehicles, hikers and bikes (NBC Montana, news). KBZK (Aug. 12, 2026, news) reported Phase 1 wrapped up around late July and the road reopened; the exact date was not reported, and the Forest Service closure-order page (01-11-06-26-03) could not be read. No Fairy Lake alert was listed on the Custer Gallatin alerts page on Oct. 8, 2026. Phase 2 (drainage, lake and trailhead parking lots, campground and trail work) is expected in 2027 (KBZK, news): expect more closures then. Even after the regrade, Bozeman District Ranger Jon Gellings advises: "It's up to the driver to make that conscious decision on maintaining a prudent and safe speed. We recommend going 25 and below" (KBZK, news). Near the Lower Fairy Lake Sno-park, the Forest Service asks visitors to "Respect private property nearby." Check the current MVUM and land-manager rules before you go: official closures, posted signs and private property override this guide. Call the Bozeman Ranger District (406-522-2520) or the Custer Gallatin Supervisor's Office (406-587-6710) before you go, and read Know Before You Go.
AGF HAS NOT RUN THIS ROUTE. This guide is built from official sources (Forest Service) plus clearly labeled secondary sources. No AGF field visit is behind it, and the 2/10 rating comes from those sources, not from an AGF drive.
WHAT THIS GUIDE COVERS

MT-86 to Fairy Lake

Forest Road 74 (Fairy Lake Road) from MT-86 (Bridger Canyon Road) to the end of the road at Fairy Lake Campground and the Fairy Lake Trailhead, 5 miles per the Forest Service. NBC Montana (news) puts the trailhead at about mile marker 6, and AGF's record keeps a 6.2-mile figure from secondary trailhead references: verify the odometer distance. AGF plans it as about 10 miles round trip.

NOT INCLUDED: hiking trails beyond the trailhead, winter Sno-park use, private property near the Sno-park, and any side roads.
WHY 2/10

Easy · Steep Gravel

AGF rates a trail by its hardest unavoidable obstacle in normal dry conditions. Forest Road 74 is a steep gravel and dirt mountain road that can be rough, bumpy and slick, with no technical 4x4 obstacle in normal dry travel (AGF record). Before the 2026 work the district ranger called the road "extremely rough" (NBC Montana, news); Phase 1 covered grading, drainage, culverts and reduced grades (news). AGF has not driven the rebuilt road. Mud and snow change it completely.

Rock
2/5
Mud
3/5
Water
0/5
Exposure
2/5
Snow
5/5
Pinstriping
1/5

Snow, mud, runoff, deadfall and fire are condition changes, not part of the base rating.

ROUTE & MAP

Getting There

From Bozeman, drive north on MT-86 (Bridger Canyon Road) about 21–22 miles (the Forest Service campground page says about 22.5), past Battle Ridge Pass and the Brackett Creek Y. Turn west (left) onto Fairy Lake Road, Forest Road 74. The Lower Fairy Lake Trailhead and Sno-park is about 1–1.5 miles up. Continue to the end of the road, 5 miles from the highway, where Fairy Lake Campground and the Fairy Lake Trailhead are (USFS).

LOADING MAP…
Custer Gallatin alerts →Fairy Lake Campground →ROUTE FILE: not published yet

The pin marks Fairy Lake Campground at the end of the road (Forest Service coordinate). It is the destination, not the MT-86 turnoff; the Fairy Lake Trailhead is about 0.14 mile away. No downloadable track is published.

VEHICLE FIT

Rig Requirements

Stock 4x4
Yes
High clearance
Recommended
Tires
Stock
Rear locker
No
Front locker
No
Winch
No
Full-size
Yes (AGF); no RVs or towed units (USFS)
Body damage
Low risk

A stock SUV or 4x4 suits normal dry conditions; high clearance (USFS) and good all-terrain tires are recommended for margin (AGF record). Do not bring an RV or tow a trailer (USFS). Use caution on narrow or rough sections, with oncoming traffic and at busy trailhead and campground areas. Carry a full-size spare and basic recovery gear.

TRIP PLANNING

Know Before You Go

Season
June 16–Dec. 1, weather dependent (USFS); 2026 closing date and gate location: verify
Typical trip
1–2 hours driving round trip (AGF record)
Camping
Fairy Lake Campground: 9 sites, no fee, no trash pickup, no firewood (USFS)
Water
Campground: potable water, summer only; trailhead: none (USFS). Bring water
Trailers
Not suitable for RV or towed unit travel (USFS)
Turnaround
At the end of the road (AGF record); verify
  • Hunting season: Montana's general deer and elk season runs Oct. 24–Nov. 29, 2026 (FWP). Expect hunters, camps and parked vehicles; wear blaze orange outside the vehicle. Archery season runs to Oct. 18. A youth deer hunt runs Oct. 15–16 (FWP).
  • Bear country: Custer Gallatin food storage order 01-11-00-23-02 applies Mar. 1–Dec. 1 on the Bozeman Ranger District. The order runs through Dec. 31, 2026 "or until rescinded," but the alert page shows Dec. 1, 2026: verify.
  • No fire restriction for the Bozeman Ranger District was listed on the Custer Gallatin alerts page on Oct. 8, 2026 (the Aug. 7, 2026 Stage 1 order covers the Sioux Ranger District). Forest Service pages showed fire danger High (trailhead) and Moderate (campground). Check before any campfire.
  • The June 16 opening is not guaranteed: in 2022 the upper road stayed closed after flooding (NBC Montana, news, historical).
  • An undated Forest Service travel-plan table shows seasonal vehicle restrictions on upper segments of Road 74 (Dec. 2–May 31 and Dec. 2–June 15). It is a planning document, not a current order.
SOURCES

Sources & Review

Last reviewed Oct. 8, 2026. No closure is listed after the 2026 construction closure, but the reopening date comes from news, RVs and trailers are not suitable, the season ends Dec. 1 or sooner with snow, and Phase 2 closures are expected in 2027. AGF has not run this route.

AGF ratings describe normal, dry-condition difficulty. They do not mean a route is legal, open or passable today. Spot something out of date? Use the Contact page.