Bitterroot National Forest

Bitterroot National Forest

Montana, Idaho

Managed by U.S. Forest Service, Northern Region

1,655,753 acres (1,587,070 federal/ 68,683 other)



First established as the 4.1-million-acre Bitter Root Forest Reserve in 1898, the smaller Bitterroot National Forest today flanks both sides of Highway 93 and the Bitterroot River Valley.  This stretch of the Idaho-Montana border is rough, mountainous country and about half this National Forest is designated Wilderness (see below).  The Continental Divide National Scenic Trail follows a portion of the boundary between Bitterroot National Forest and Beaverhead National Forest, heading northeast from Lost Trail Pass where Highway 93 crosses into Idaho.


Nez Perce Auto Trail, Lost Trail Pass, Lake Como, Magruder Massacre Site, Trapper Peak, Skalkaho Falls, Blodgett Canyon, Boulder Creek Falls, Palisade Mountain National Recreation Trail, Continental Divide National Scenic Trail

Must-Do Activity

There are trails going west up seemingly every canyon in the Bitterroot Mountains, while Lost Horse Creek has a road that follows it nearly to the Idaho border.  Wildfire smoke obscured the views during our visit in July 2021, but the glacier-carved mountain scenery was still impressive on Blodgett Creek Trail.  We imagine on a clear day the views would rival California’s Yosemite Valley.  There are many more roads (and some trails) to explore in the Sapphire Mountains east of Highway 93.

Best Trail

Blodgett Creek Trail leads 12.6 miles one-way to Blodgett Lake, but you do not have to go that far to appreciate its incredible beauty.  The trail climbs steadily as it follows the creek, passing the memorial to smokejumper Don Mackey on its way to two waterfalls: the first at 4.5 miles hidden in a slot canyon and the second a wide cascade only a half-mile further (for a cumulative elevation gain of 1,637 feet).  Leaving from a nearby trailhead, Blodgett Overlook Trail is a steep 2.8 miles out-and-back.  A similar trek with outstanding views, Bear Creek Overlook Trail climbs about 1,000 feet as it switchbacks 2.6 miles one-way.

Watchable Wildlife

On our backpacking trip into Blodgett Canyon we saw bats, many trout and a beaver dam in the creek, plus a variety of bird life, including a dipper (or ouzel) and a hairy woodpecker.  We also heard hermit thrushes and pikas calling in the rocky scree slopes.  The Bitterroot and Sapphire Mountains are home to elk, mule deer, white-tailed deer, bighorn sheep, mountain goats, and moose, as well as mountain lions, black bears, and grizzly bears (which were reintroduced starting in 2003).  Wildlife watchers should drive the U.S. Forest Service’s Sula Deer, Elk, and Bighorn Driving Tour.

Instagram-worthy Photo

As you hike the Blodgett Creek Trail keep an eye on the ridgeline to the south for a massive natural arch that punches a hole in the skyline.

Peak Season




Road Conditions

The last three miles to Blodgett Trailhead were well-groomed dirt road and the route from Hamilton, Montana had signs at every turn.


Located on a creek, Blodgett Campground (fee) seemed like a nice spot, though it was a bit noisy and smoky on a weekend in mid-July.  We also read that Deep Creek Campground is nice and is located near the ruins of a 1930s Civilian Conservation Corps camp.

Wilderness Areas

Anaconda-Pintler Wilderness (also in Beaverhead-Deerlodge National Forest)

Frank Church-River of No Return Wilderness (also in Payette, Salmon-Challis, Boise, and Nez Perce National Forests)

Selway-Bitterroot Wilderness (also in Nez Perce, Clearwater, and Lolo National Forests)

[Allan Mountain Roadless Area]

Related Sites

Beaverhead National Forest (Montana)

Big Hole National Battlefield (Montana)

Yellowstone National Park (Wyoming-Montana-Idaho)

Nearest National Park

Glacier (Montana)

Conifer Tree Species

ponderosa pine, whitebark pine, lodgepole pine, Douglas-fir, western redcedar, subalpine larch, Engelmann spruce, subalpine fir, grand fir, western yew

Flowering Tree Species

quaking aspen, black cottonwood, bog birch, Rocky Mountain maple, red alder, red-osier dogwood, sagebrush

Explore More – How tall is Trapper Peak, the highest point in Bitterroot National Forest?

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