Lost Fork Judith River
Lost Fork Judith River Trail is a 12.4-mile trail in Helena-Lewis and Clark National Forest, Montana. The Forest Service rates it trail class 3, developed. It is open to hiking, horse and pack stock and mountain biking.
Trail conditions, closures and hazards are not tracked here. The forest office carries current alerts and closure orders.
Map
One end Other endLine simplified to about 100 metres. Basemap from the USGS National Map.
| One end | 46.8385° N, 110.3802° W · Directions ↗ |
| Other end | 46.7378° N, 110.5563° W · 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
| Length | 12.4 miles |
| Trail class | 3, developed |
| Type | land trail |
| Surface | native material |
| Typical tread width | 18-24 inches |
| Motor vehicles | Closed to all motorized use year-round |
| Accessibility | Evaluated and does not meet accessibility guidelines |
| Trail numbers | 409 |
| Forest | Helena-Lewis and Clark National Forest (unit 0115) |
| States | Montana |
| Detail published | management 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
Allowed uses
| Hiking | Allowed 12/01 to 11/30 (month/day) |
| Horse and pack stock | Allowed 05/01 to 11/30 (month/day) |
| Mountain biking | Allowed 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.
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.
Trails nearby
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
- PrescribedKings Hill Cabin Piles Rx
12 mi from the trail midpoint · 1 acre
- PrescribedShowdown Piles Rx
12 mi from the trail midpoint · 4 acres
- PrescribedCoyote Divide Piles Rx
18 mi from the trail midpoint
- PrescribedMonarch Unit 141 Piles Rx
28 mi from the trail midpoint · 3 acres
Distance is to the reported incident point, not the fire edge. Closure orders are on the forest's official page.
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Reference
Questions people ask
How long is the Lost Fork Judith River Trail?
The Forest Service records 12.4 miles under this name in Helena-Lewis and Clark National Forest, the sum of 1 segment.
Source: Forest Service trail layer
What is allowed on the Lost Fork Judith River Trail?
Hiking, horse and pack stock and mountain biking are allowed. The trail is closed to motor vehicles year-round. Some uses are seasonal. The allowed uses section lists the dates.
Source: Forest Service trail layer
Where does the Lost Fork Judith River Trail start?
The line begins at 46.8385° N, 110.3802° W and ends at 46.7378° N, 110.5563° W. 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 Lost Fork Judith River Trail in a wilderness area?
No. The trail line does not cross any polygon in the National Wilderness Preservation System layer.
Source: Wilderness Connect
Where can I camp near the Lost Fork Judith River Trail?
Judith Station Day Use Area (4.3 mi) and Hay Canyon Campground (4.4 mi) are within five miles of the trail. The camping section lists all 2 with site counts and booking links.
How developed is the Lost Fork Judith River Trail?
Trail class 3, which the Forest Service describes as 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 Lost Fork Judith River Trail?
The typical tread is 18-24 inches wide.
Source: Forest Service trail layer
Is the Lost Fork Judith River Trail accessible?
No. The Forest Service evaluated it and found it does not meet its accessibility guidelines.
Source: Forest Service trail layer
Who manages the Lost Fork Judith River Trail?
Helena-Lewis and Clark National Forest, Forest Service unit 0115. The trail is in Montana.
Is there a fire near the Lost Fork Judith River Trail?
The interagency feed shows 4 active incidents within 50 miles of the trail midpoint as of 2026-11-01, the nearest Kings Hill Cabin Piles Rx at 12 miles. Check the forest's closure orders before you go.
Source: Fire nearby
Source
This page is built from 1 segment named Lost Fork Judith River in the Forest Service TrailNFS_Publish layer, administrative unit 0115. 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 November 1, 2026. The methodology page explains how segments become trails.