Big Rock
Big Rock Trail is a 32 miles trail in Nez Perce-Clearwater National Forest, Idaho. The forest has not published allowed uses for it. It enters Selway-Bitterroot Wilderness.
Trail conditions, closures and hazards are not tracked here. The Nez Perce-Clearwater 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 | 46.1139, -115.2037 · Directions ↗ |
| Other end | 46.1238, -114.9342 · 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 | 32 miles |
| Type | land trail |
| Accessibility | Not evaluated |
| Trail numbers | 693 |
| Forest | Nez Perce-Clearwater National Forest (unit 0117) |
| States | Idaho |
| Detail published | centerline only |
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.
Wilderness
- Selway-Bitterroot Wilderness WildernessFS · about 97% of the line is insideWilderness Connect ↗
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
No season published · listed none No trailers due to steep conditions. | 0.1 mi |
Distance is from the point to the nearest part of the trail line. Season text is what the forest wrote and is often a season name rather than a date. The recreation page link goes to the Forest Service site, which may redirect to the forest's recreation index.
Camping nearby
No federal campground is recorded within five miles of the trail. Dispersed camping is allowed on most National Forest land outside posted closures. The forest office has the current rules.
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
- WildfireGrotto
3 mi from the trail midpoint · 3,856 acres · 20% contained
- WildfireThree Links
4 mi from the trail midpoint · 927 acres · 21% contained
- WildfireCascade
8 mi from the trail midpoint · 7,475 acres · 70% contained
- WildfireWolf Creek
9 mi from the trail midpoint · 2,643 acres · 50% contained
Distance is to the reported incident point, not the fire edge. Closure orders are on the forest's official page.
Nez Perce-Clearwater National Forest publishes this trail as a centerline only, with no class, surface or allowed uses. What is here is the name, the length and the line. The forest office has the rest.
Checked nightly. Sections appear as soon as the forest publishes more.
Reference
Questions people ask
How long is the Big Rock Trail?
32 miles, the sum of the 1 segment the Forest Service records under this name in Nez Perce-Clearwater National Forest.
Source: Forest Service trail layer
What is allowed on the Big Rock Trail?
Nez Perce-Clearwater National Forest has not published allowed uses for this trail. The forest office can say what is open.
Where does the Big Rock Trail start?
The line begins at 46.1139, -115.2037 and ends at 46.1238, -114.9342. The nearest recorded trailhead is Fog Mountain Trailhead, 0.1 miles from the line. The record does not say which end is the usual start.
Source: Forest Service trail layer
Is the Big Rock Trail in a wilderness area?
Yes. It enters Selway-Bitterroot Wilderness. Wilderness rules ban bicycles and motor vehicles and often limit group size.
Where can I camp near the Big Rock Trail?
No federal campground is recorded within five miles of the trail. Dispersed camping is allowed on most National Forest land outside posted closures. The forest office has the current rules.
Who manages the Big Rock Trail?
Nez Perce-Clearwater National Forest, Forest Service unit 0117. The trail is in Idaho.
Is there a fire near the Big Rock Trail?
4 active incidents within 50 miles of the trail midpoint as of 2026-09-17, the nearest Grotto at 3 miles. Check the forest's closure orders before you go.
Source: Fire nearby
Source
This page is built from 1 segment named BIG ROCK in the Forest Service TrailNFS_Publish layer, administrative unit 0117. 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.