4.9
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5,552
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03:25
8.86km
1,020m
Hiking
Hike the challenging Casey Peak Trail, a difficult 5.5-mile route in Helena National Forest with panoramic summit views and a historic fire
Last updated: February 26, 2026
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Your route passes through a protected area
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Waypoints
Way Types & Surfaces
Way Types
8.46 km
336 m
< 100 m
Surfaces
4.58 km
4.23 km
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The trailhead for Casey Peak Trail is located southeast of Helena, Montana. Specific parking directions are generally available on local forest service websites or detailed hiking guides. It's advisable to check these resources before your visit to confirm the most current access points and parking availability.
Yes, the Casey Peak Trail is dog-friendly. The initial 2.5 miles involve a gradual climb with three crossings of the East Fork of McLellan Creek, which are often enjoyed by dogs. Always ensure your dog is under control, preferably on a leash, and follow Leave No Trace principles.
The best time to hike the Casey Peak Trail is typically during the warmer months when the trail is free of snow. During winter, the trail can be extreme due to deep snow, cold temperatures, and strong winds at the summit, often requiring snowshoeing. For the best experience and panoramic views, aim for late spring through early fall.
The Casey Peak Trail is located within the Helena National Forest. Generally, day-use permits are not required for hiking in national forests, nor are there entrance fees for accessing the trailhead. However, it's always a good idea to check the official Helena National Forest website for any specific regulations or alerts before your trip.
The Casey Peak Trail is considered a difficult hike, suitable for conditioning avid hikers or trail runners. With a substantial elevation gain of 3,500 feet over approximately 10.5 miles round-trip, it's a significant step up from easier trails in the Helena area. It is generally not recommended for beginners or young families due to its challenging nature and steep sections.
The terrain on this trail is diverse. The first 2.5 miles involve a gradual climb with stream crossings. After Casey Meadows, the trail becomes significantly steeper, ascending 2,000 feet over the last two miles to the summit. The final 1.5 miles include over a dozen switchbacks. Expect steep, rocky sections with loose, chunky rock in places.
From the summit of Casey Peak, you can expect fabulous panoramic views in all directions. These include Helena, East Helena, and the valley to the north, Canyon Ferry Lake to the east, Elkhorn Peak to the south, and the Continental Divide to the west. Past fires have cleared some areas, offering unobstructed views from lower elevations as well.
Yes, a notable historical feature awaits at the summit of Casey Peak: a curious stone structure which is the first floor of a fire lookout briefly used in the early 1900s. While the wooden upper sections have deteriorated, the stone base remains. The trail also passes through areas affected by past fires, which now offer unique open vistas.
Hiking the Casey Peak Trail in winter is considered extreme due to deep snow (2-4 feet), cold temperatures, and strong winds at the summit. It often requires snowshoeing, and progress can be slow. For the ambitious, it's possible to snowshoe to a frozen waterfall and a cave below and to the north of the summit.
Yes, the route primarily follows the 343 Casey Meadows and 374 Casey Peak trails. It also passes through sections of the Montgomery Park Trail, and briefly touches on the 302 McClellan Creek Trail.
Given the trail's difficulty and significant elevation gain, essential items include plenty of water, high-energy snacks, sturdy hiking boots, layers of clothing suitable for changing weather conditions, sun protection, and a map or GPS device. Trekking poles can also be very helpful for the steep ascents and descents.