State Line (Granite Peak)
State Line (Granite Peak) Trail is a 13.9-mile trail in Lolo National Forest, Idaho and Montana. The Forest Service rates it trail class 2, moderately developed. It is open to hiking, horse and pack stock and mountain biking.
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 end | 46.6594° N, 114.6286° W · Directions ↗ |
| Other end | 46.6966° N, 114.7596° 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 is recorded as 2 segments.
The trail
| Length | 13.9 miles |
| Trail class | 2, moderately developed |
| Type | land trail |
| Surface | native material |
| Typical grade | 12-20 percent |
| Typical tread width | 18-24 inches |
| Motor vehicles | Closed to all motorized use year-round |
| Accessibility | Not evaluated |
| Trail numbers | 46 |
| Forest | Lolo National Forest (unit 0116) |
| States | Idaho, 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 year-round |
| Horse and pack stock | Allowed year-round |
| 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. The forest's recreation pages list the trailheads it does publish.
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
- PrescribedRx D3 Granite Graves 220
5 mi from the trail midpoint · 10 acres
- PrescribedRx D3 Granite Graves 203
6 mi from the trail midpoint · 31 acres
- PrescribedRx D4 Clearwater Crossing Admin
14 mi from the trail midpoint · 1 acre
- PrescribedRx D4 Sawmill Petty 931
15 mi from the trail midpoint
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 State Line (Granite Peak) Trail?
The Forest Service records 13.9 miles under this name in Lolo National Forest, the sum of 2 segments.
Source: Forest Service trail layer
What is allowed on the State Line (Granite Peak) Trail?
Hiking, horse and pack stock and mountain biking are allowed. The trail is closed to motor vehicles year-round.
Source: Forest Service trail layer
Where does the State Line (Granite Peak) Trail start?
The line begins at 46.6594° N, 114.6286° W and ends at 46.6966° N, 114.7596° 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 State Line (Granite Peak) 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 State Line (Granite Peak) Trail?
Lee Creek Campground (4.1 mi) is within five miles of the trail. The camping section lists it with site counts and booking links.
Source: Campsite Atlas
How developed is the State Line (Granite Peak) 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 State Line (Granite Peak) Trail?
The typical grade is 12-20 percent. The typical tread is 18-24 inches wide.
Source: Forest Service trail layer
Who manages the State Line (Granite Peak) Trail?
Lolo National Forest, Forest Service unit 0116. The trail is in Idaho and Montana.
Is there a fire near the State Line (Granite Peak) Trail?
The interagency feed shows 4 active incidents within 50 miles of the trail midpoint as of 2026-11-01, the nearest Rx D3 Granite Graves 220 at 5 miles. Check the forest's closure orders before you go.
Source: Fire nearby
Source
This page is built from 2 segments named State Line (Granite Peak) 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 November 1, 2026. The methodology page explains how segments become trails.