USFS · National forest · Montana, Idaho

Bitterroot National Forest

Bitterroot National Forest comprises 1.587 million acres (6,423 km2) in west-central Montana and eastern Idaho of the United States. It is located primarily in Ravalli County, Montana, but also has acreage in Idaho County, Idaho (29.24%), and Missoula County, Montana (0.49%).

From Wikipedia, licensed CC BY-SA 4.0.

Official page at U.S. Forest Service ↗
DesignationNational Forest
Managed byU.S. Forest Service
StatesMontana, Idaho
Size1.7 million acres (Forest Service administrative boundary (gis_acres))
Forest Service code0103, region 01
Center point45.9317, -114.2965
Night skyAbout as dark as the ground gets (Black Marble reading 14)

Boundary map

1 outline

Boundary, simplified to about 0.005 degrees Federal campground Forest Service recreation site

The outline is the agency boundary simplified for display, so small parcels and inholdings may not show. The agency page has the authoritative map.

Where to camp

Campsite Atlas →

27 federal campgrounds sit inside the boundary and 27 more are within ten miles of it. Nearest first. Distances are from the campground point to the boundary edge, from the Campsite Atlas index.

Show 4 more

42 more within ten miles are not listed here.

Trailheads and sites

Forest Service directory · 109

The Forest Service lists 109 recreation sites in this forest, among them 49 trailheads, 21 campgrounds, 8 cabins, 4 backpackings. Each links to its page on fs.usda.gov, which carries the season, fees and current status.

Show all 60

The 60 closest to the center point are listed; 49 more are on the Forest Service site.

Distance is from the center point of the boundary, not from a road or town.

Fire nearby

Within 50 miles · as of 2026-09-17
  • Wildfire
    Cooper

    14 mi from the center point · 354 acres · 0% contained

  • Wildfire
    North Fork Lost Horse

    16 mi from the center point · 118 acres · 70% contained

  • Wildfire
    Scimitar

    23 mi from the center point · 463 acres · 0% contained

  • Wildfire
    Nature Grove

    24 mi from the center point · 1,422 acres · 0% contained

Distance is to the reported incident point, not the fire edge, and is measured from the center of a boundary that may be many miles across. Check the agency page for closures.

Explore

Nearby on the other atlases

National Park System units within 30 miles · Park Atlas
National Register listings within 15 miles · 153 in all · Register Atlas

Landmarks are listed first, then by distance from the boundary.

Reference

Questions people ask

How big is Bitterroot National Forest?

1.7 million acres.

Source: Forest Service boundary data

Who manages Bitterroot National Forest?

The U.S. Forest Service.

Source: U.S. Forest Service

What state is Bitterroot National Forest in?

The boundary crosses Montana and Idaho.

Source: How states are assigned

Can I camp at Bitterroot National Forest?

27 federal campgrounds sit inside the boundary, including Alta Campground, Black Bear Campground and East Fork Cabin. 54 in all are within ten miles. Dispersed camping is allowed on most national forest land outside developed sites; check the forest page for closures.

Source: Where to camp

Where are the trailheads in Bitterroot National Forest?

The Forest Service lists 109 recreation sites here, including 49 trailheads, 21 campground campgrounds and 8 cabin rentalss. Each one links to its Forest Service page.

Source: Trailheads and sites

How do I get to Bitterroot National Forest?

A point inside the boundary is at 45.932, -114.296. Big Hole National Battlefield is 13 miles away. The official page carries directions and the office address.

Source: U.S. Forest Service

Is there a fire near Bitterroot National Forest right now?

4 active incidents within 50 miles as of 2026-09-17, the nearest Cooper at 14 miles. Distance is to the reported incident point, not the fire edge.

Source: Fire nearby

How dark is the night sky at Bitterroot National Forest?

NASA’s Black Marble night-lights image reads 14 on a 0 to 255 scale at the center point, about as dark as the ground gets.

Source: NASA Black Marble

Which national parks are near Bitterroot National Forest?

Big Hole National Battlefield (13 mi). Park Atlas has fees, hours and alerts for each.

Source: Nearby on the other atlases

Are there historic places near Bitterroot National Forest?

153 National Register listings within 15 miles, including Alta Ranger Station and El Capitan Lodge.

Source: Register Atlas

Sources

  • Boundary, name, acreage and code: the Forest Service Enterprise Data Warehouse.
  • States: computed by intersecting the boundary with Census state polygons; a state is listed when it holds at least one percent of the area.
  • Description: Bitterroot National Forest on Wikipedia, CC BY-SA 4.0. The article was accepted because its title contains this unit’s name.
  • Campgrounds: the Campsite Atlas index of federal campgrounds, matched to this boundary at build time.
  • Trailheads and sites: the Forest Service Recreation Opportunities layer, matched by forest code.
  • Night sky: NASA Black Marble (VIIRS, 2016 composite) sampled at zoom 6 around the center point.
  • Weather, alerts, air quality, river flow and earthquakes load live in your browser from NWS, AirNow, USGS and iNaturalist when you open the page.