Overview
The Big Hole Valley is one of the most expansive and distinctive landscapes in Montana: a high-altitude grassland basin at approximately 6,500 feet, surrounded on all sides by mountains and drained by the upper Big Hole River before it bends north toward Wisdom. The scale of the place is comprehensible only from inside it the surrounding ranges form a full 360-degree horizon, and the open meadows and wetlands in the basin floor create a landscape that looks more like the high grasslands of Wyoming than the timbered ranges to the north.
This trail through the valley makes an easy-to-moderate loop with 500 feet of cumulative elevation gain, offering access to the basin floor and its wildlife. The Beaverhead-Deerlodge National Forest encompasses portions of the basin, and the trail runs through a section of the valley where hayfields and wetlands meet forested slopes. The bird life here is exceptional sandhill cranes stage in the wet meadows in spring and fall, and the upland habitats support numerous species uncommon elsewhere in Montana.
For hikers who want a contrast to the high-elevation, steep-terrain character of most routes in this forest, the Big Hole Valley Trail offers an entirely different kind of walk. The views are panoramic rather than intimate, and the effort is low enough that the walk can become a casual wander rather than an athletic objective.
The Route
Miles 0 to 2: Trailhead to Valley Center
From the trailhead, the loop trail descends gently to the valley floor and follows a path through grassland and riparian willow thickets. This section passes through the most productive bird-watching terrain, with multiple wetland areas visible from the path. By mile 1, the views expand to the full basin: the Anaconda-Pintler peaks to the northeast, the Pioneer Mountains to the east, and the Bitterroot Range to the west.
Miles 2 to 4: Loop Return
The return leg climbs the gentle slope back toward the forest edge and returns to the trailhead via a slightly higher route that provides valley-wide views. Total gain on the return is modest this is not a challenging climb but provides a different perspective on the basin.
When to Visit
This trail is accessible earlier than most in the forest due to its low starting elevation. Late May through October is the practical window. Spring and early summer bring the highest water in the valley wetlands and the best bird-watching conditions. Fall colors in the aspens on the surrounding slopes are notable in September and October.
Check conditions before visiting using the conditions-checking guide.
What to Bring
Many hikers carry the following for this trail:
- 1-2 liters of water (sources in the valley may need filtering)
- Binoculars for bird watching
- Insect repellent in late spring and early summer (valley wetlands support mosquitoes)
- Bear spray as a precaution
- Rain gear; valley weather can change
Individual needs vary. The easy terrain means physical demands are low.
Practical Details
No permit is required as of 2026. No fee at the trailhead. Dispersed camping is permitted in the national forest area; follow Leave No Trace principles. The America the Beautiful pass and its veteran variants apply to developed recreation sites see our veteran benefits guide for details.
Getting There
Wisdom, Montana, is the gateway town for the Big Hole Valley, located on MT-43 approximately 50 miles southwest of Anaconda. From Wisdom, take forest roads south and east toward the trailhead. The Wisdom Ranger District can provide current road numbers and access information. From Butte, allow approximately 1.5 hours.