Overview
The Pintler Pass Loop is the signature multi-day backpacking route of Deerlodge National Forest, traversing the rugged Anaconda-Pintler Wilderness through a landscape of alpine lakes, wildflower meadows, and dramatic mountain terrain. The 17-mile loop gains 4,200 feet and is best approached over 2 to 3 days.
The loop connects to the Continental Divide Trail in the high country, and the route passes through some of the most visually impressive alpine terrain in western Montana. The Anaconda-Pintler Wilderness is one of Montana's gems: spectacular scenery combined with relatively light visitor traffic.
The shorter Pintler Pass Trail provides a day-hike version of the same terrain.
The Route
From the Pintler Lake Trailhead, the loop climbs into the wilderness area and passes through the lake basin before ascending to the high pass. The Continental Divide crossing provides the best views of the route. The descent returns through a different drainage with lake and meadow terrain before completing the circuit.
When to Visit
Mid-July through September. High passes and upper basins may retain snow into early July. August is the most reliable for full route access and peak wildflower season.
Practical Details
No permits required (as of 2026). Bear spray is essential. Proper food storage is required in wilderness areas. Cell service is unavailable. Review bear canister requirements and Leave No Trace principles.
Getting There
From Anaconda, Montana, drive west on Highway 1 and then south on forest roads to the Pintler Lake Trailhead. High-clearance vehicle recommended. About 1 hour from Anaconda.
Leave No Trace
This trail receives enough use that following Leave No Trace principles is important for preserving the experience for future visitors. Stay on the marked trail to prevent erosion. Pack out all waste. Avoid camping within 200 feet of water sources or the trail. Use existing fire rings only where campfires are permitted, and check current fire restrictions at checking conditions before you go before any visit. The trail and surrounding terrain remain in good condition because previous visitors have respected these norms.
Safety Considerations
The strenuous rating reflects the trail's general character under typical conditions. Weather, seasonal snow, and trail conditions can change the experience significantly. Carry the 10 Essentials on any full-day outing. Inform someone of your plans and expected return time before heading out, particularly on longer or more remote trails. Cell service varies throughout Deerlodge National Forest and may be unreliable in canyon bottoms or remote terrain.