Montana · Trail 178

Sawmill Ridge

Sawmill Ridge Trail is a 6.4 miles trail in Lolo National Forest, Montana. The Forest Service rates it trail class 2, moderately developed. It is open to hiking and horse and pack stock. It enters Welcome Creek Wilderness.

Trail conditions, closures and hazards are not tracked here. The Lolo National Forest official page carries current alerts and closure orders.

Map

One end Other endLine simplified to about 100 metres. Basemap from the USGS National Map.

One end46.6211, -113.6521 · Directions ↗
Other end46.6354, -113.7194 · Directions ↗

The ends are the two ends of the longest connected chain of segments. The record does not say which is the usual start.

The trail

Length6.4 miles
Trail class2, moderately developed
Typeland trail
Surfacenative material
Typical grade12-20 percent
Typical tread width18-24 inches
Motor vehiclesClosed to all motorized use year-round
AccessibilityNot evaluated
Trail numbers178
ForestLolo National Forest (unit 0116)
StatesMontana
Detail publishedmanagement level, with uses

Values are the set across all segments. Class 1 is minimally developed and class 5 is fully developed. Grade and width are the forest's typical values, not measured extremes.

Weather by month

NOAA climate normals →
Weather by month near Sawmill Ridge Trail10°20°30°40°50°60°70°January: 1.38 inches of precipitation, 15.5 inches of snowFebruary: 1.03 inches of precipitation, 7.2 inches of snowMarch: 0.76 inches of precipitation, 4.6 inches of snowApril: 1.13 inches of precipitation, 1.3 inches of snowMay: 1.86 inches of precipitation, 0.4 inches of snowJune: 2.16 inches of precipitation, 0.0 inches of snowJuly: 0.83 inches of precipitation, 0.0 inches of snowAugust: 0.62 inches of precipitation, 0.0 inches of snowSeptember: 0.91 inches of precipitation, 0.2 inches of snowOctober: 1.46 inches of precipitation, 1.9 inches of snowNovember: 1.55 inches of precipitation, 7.4 inches of snowDecember: 1.41 inches of precipitation, 13.3 inches of snowJanFebMarAprMayJunJulAugSepOctNovDecJanuary: 19.1°F averageFebruary: 21.7°F averageMarch: 31.5°F averageApril: 38.8°F averageMay: 46.9°F averageJune: 54.8°F averageJuly: 61.3°F averageAugust: 60.2°F averageSeptember: 51.5°F averageOctober: 39.4°F averageNovember: 27.7°F averageDecember: 18.9°F average0 in5 in10 in15 in20 inTemp °FInches
The line is the average temperature and the bars are average precipitation at Potomac, 18 miles from the trail midpoint at 3,690 feet, station USC00246685 in the NOAA monthly climate normals for 1991 to 2020. Precipitation totals about 15 inches a year. The dotted line is average snowfall, about 52 inches a year on the same inches scale. The station sits about 1,800 feet lower than the trail midpoint, so temperatures on the ground run cooler.

Allowed uses

HikingAllowed year-round
Horse and pack stockAllowed year-round

A use is listed when the Forest Service records it as managed, accepted or discouraged on any segment. Discouraged still means legal. Uses marked restricted are left out. Where the forest publishes a Motor Vehicle Use Map, that map governs motorized use.

Wilderness

Inside a designated wilderness, bicycles and motor vehicles are prohibited by law regardless of the trail record, and permits or group limits may apply.

Trailheads

The Forest Service recreation layer records no trailhead within a third of a mile of this trail's line. Many trails start from a road pullout or another trail with no trailhead record. The forest's recreation pages list the trailheads it does publish.

Camping nearby

Campsite Atlas cards carry site counts and booking links from Recreation.gov. Forest Service cards come from the recreation layer and link the agency page.

Fire nearby

  • Wildfire
    Black Bear

    33 mi from the trail midpoint · 2,126 acres · 80% contained

  • Wildfire
    Nature Grove

    35 mi from the trail midpoint · 1,422 acres · 0% contained

  • Wildfire
    Bear Gulch

    36 mi from the trail midpoint · 10 acres

  • Wildfire
    Moose

    38 mi from the trail midpoint · 6,005 acres · 15% contained

Distance is to the reported incident point, not the fire edge. Closure orders are on the forest's official page.

Reference

Questions people ask

How long is the Sawmill Ridge Trail?

6.4 miles, the sum of the 1 segment the Forest Service records under this name in Lolo National Forest.

Source: Forest Service trail layer

What is allowed on the Sawmill Ridge Trail?

hiking and horse and pack stock. The trail is closed to motor vehicles year-round.

Source: Forest Service trail layer

Where does the Sawmill Ridge Trail start?

The line begins at 46.6211, -113.6521 and ends at 46.6354, -113.7194. No Forest Service trailhead is recorded within a third of a mile of it. The record does not say which end is the usual start.

Source: Forest Service trail layer

Is the Sawmill Ridge Trail in a wilderness area?

Yes. It enters Welcome Creek Wilderness. Wilderness rules ban bicycles and motor vehicles and often limit group size.

Source: Welcome Creek Wilderness Wilderness

Where can I camp near the Sawmill Ridge Trail?

Norton Campground (1.5 mi), Grizzly Campground (2.6 mi) and Dalles Campground (4.2 mi) are within five miles of the trail. Site counts and booking links are on Campsite Atlas.

Source: Campsite Atlas

How developed is the Sawmill Ridge Trail?

Trail class 2, which the Forest Service describes as moderately developed. Class 1 is a minimal, unimproved route and class 5 is fully developed, often paved.

Source: Forest Service trail layer

How steep and how wide is the Sawmill Ridge Trail?

The typical grade is 12-20 percent. The typical tread is 18-24 inches wide.

Source: Forest Service trail layer

Who manages the Sawmill Ridge Trail?

Lolo National Forest, Forest Service unit 0116. The trail is in Montana.

Source: Lolo National Forest official page

Is there a fire near the Sawmill Ridge Trail?

4 active incidents within 50 miles of the trail midpoint as of 2026-09-18, the nearest Black Bear at 33 miles. Check the forest's closure orders before you go.

Source: Fire nearby

Source

This page is built from 1 segment named SAWMILL RIDGE in the Forest Service TrailNFS_Publish layer, administrative unit 0116. Wilderness overlap is tested against the National Wilderness Preservation System layer from Wilderness Connect. Trailheads and Forest Service campgrounds come from the Forest Service Recreation Opportunities layer. Data refreshed September 17, 2026. The methodology page explains how segments become trails.