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Grass Ridge Trail # 65

Current Conditions
The Grass Ridge trail #65 is typically cleared every few years. Please visit the interactive map or call the West Fork Ranger Station for current conditions.

The Grass Ridge trail is 6.4 miles long. It begins at Trail 4 and ends at Road 224 - Hells Half Lookout. The trail is open for the following uses: Horseback Riding and Backpacking.

Current conditions: Bitterroot National Forest Trail Clearing Status (Interactive Map)

Specific Trail Information

Trail Type

Standard/Terra Trail — A trail that has a surface consisting predominantly of the ground and that is designed and managed to accommodate use on that surface.

General Information

  • The Grass Ridge trail #65 is entirely in the Frank Church River of No Return Wilderness.
  • Practice Leave No Trace principles when visiting forest lands.
  • Pack it in, Pack it out, no garbage service provided.
  • Weed Seed Free Feed is required on all national forest land.
  • Campfires allowed, dependent upon seasonal fire restrictions.   
  • Practice good trail etiquette by staying on designated paths, yielding to uphill users, and giving space to others.
  • Pets must be under control. Leashes are recommended to avoid user and wildlife conflicts. 

Typical season of use is from May 15 into November.

No permits required for non-commercial use.

No potable water is available. All water must be sourced naturally.

No motorized equipment: chainsaws.

No Mechanized equipment: vehicles, OHV, motorcycles, bikes, drones, gliders, aircraft landings.

Max group size: 20 people and 20 stock animals. 

Contact Name: West Fork Ranger Station

Contact Phone: 406-821-3269

West Fork Ranger District administrative office in the fall.

Address: 6735 West Fork Road Darby, MT 59829
Phone: 406-821-3269
Hours: Monday-Friday, 8:00 a.m. - 4:30 p.m. (Closed on federal holidays)

Getting There

Trailhead/Starting Points

Magruder Ranger Station

Parking

Parking is located at the Magruder visitor parking area or Hells Half Acre Lookout visitor parking area.

Directions

Directions to Magruder is to turn south from FS Road #468 onto FS Road #468A for 1/2 mile. 

Nearby Recreation Sites

Recreation Opportunities

Last updated April 16, 2026