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Hiking trails & Routes
United States
Montana
Gallatin County

Blackmore Trail

Hard

4.6

(5211)

7,921

hikers

Blackmore Trail

07:05

20.8km

1,070m

Hiking

Hike the challenging Blackmore Trail in Custer Gallatin National Forest, featuring Blackmore Lake and panoramic views from Mount Blackmore's

Last updated: February 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Custer Gallatin National Forest

Waypoints

A

Start point

Parking

Get Directions

1

8.17 km

Mount Blackmore

Highlight • Summit

Mount Blackmore (10,154 ft ) offers amazing views of the Gallatin Range.
You can reach the top hiking the Blackmore Trail and the less ambitious hikers can stop to the Blackmore Lake.

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B

20.8 km

End point

Parking

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Way Types & Surfaces

Way Types

16.2 km

3.46 km

1.08 km

Surfaces

16.2 km

1.71 km

1.08 km

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (3,030 m)

Lowest point (2,040 m)

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Weather

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Today

Monday 13 July

27°C

14°C

32 %

Additional weather tips

Max wind speed: 9.0 km/h

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Frequently Asked Questions

How long does it typically take to hike this trail?

The duration varies significantly based on your chosen destination. A round-trip to Blackmore Lake usually takes about 2-3 hours. If you're aiming for the Mount Blackmore Summit, expect a much more strenuous 6-8 hour endeavor, or even longer depending on your pace and breaks.

What is the best time of year to hike this route?

The best time for hiking is generally from late spring through early fall (June to October). Wildflowers are vibrant in season, and the upper sections offer open views. Be aware that snow can persist on trails to Blackmore Lake into late May or early June, and the trail is also popular for winter sports like snowshoeing and cross-country skiing.

Where does the trail start and is parking available?

The trail typically starts at the Blackmore Trailhead, which is located near Bozeman, Montana. Parking is available at the trailhead, but as it's a popular spot, especially in summer, arriving early is recommended to secure a space.

Is this trail dog-friendly?

Yes, the Blackmore Trail is generally dog-friendly. However, always ensure your dog is under control, preferably on a leash, to protect wildlife and for the safety of other hikers. Remember to pack out any waste.

Do I need a permit or pay an entrance fee for this area?

The Blackmore Trail is located within the Custer Gallatin National Forest. Generally, there are no specific permits required for day hiking, nor are there entrance fees for accessing the trail itself. However, always check the latest regulations from the U.S. Forest Service before your trip, especially if you plan on camping or engaging in other activities.

What can I see along the route?

The trail offers diverse scenery. You'll wind through dense pine forests, follow Blackmore Creek, and pass by Blackmore Lake, nestled beneath Mount Blackmore and Elephant Mountain. Higher up, you'll find alpine fields and, from the summit, glorious panoramic views of the Hyalite area and the Gallatin Range. Keep an eye out for local wildlife and vibrant wildflowers in season.

What is the terrain like on the Blackmore Trail?

The terrain varies from well-maintained forest paths with switchbacks in the lower sections to more challenging surfaces higher up. Expect alpine singletrack, loose rock, lengthy rock gardens, and off-camber roots, especially as you ascend past Blackmore Lake towards the summit. The initial section to the lake is mostly uphill but generally smooth.

Is this a loop trail or an out-and-back?

The most common way to experience the Blackmore Trail is as an out-and-back. You can choose to turn around at Blackmore Lake for a moderate hike or continue to the summit of Mount Blackmore for a more strenuous adventure. More ambitious hikers can extend their trip by another 11 miles to the S. Cottonwood trailhead if a shuttle vehicle is arranged.

Is this trail suitable for beginners?

The difficulty varies. The round-trip to Blackmore Lake (about 4 miles with 640 feet elevation gain) is generally considered moderate and suitable for beginners looking for a rewarding shorter hike. However, continuing to the Mount Blackmore Summit is significantly more challenging, rated as difficult, with steep sections and substantial elevation gain, making it unsuitable for novice hikers.

Does the trail intersect other well-known paths?

Yes, while the primary route is the Blackmore Trail, sections of this route also pass through or intersect with parts of other official trails, including Fs 3153, Fs 3153C, Fs 3153B, and Fs 3153A.

Are there water sources available along the trail?

Yes, the trail follows Blackmore Creek for a portion of the lower section, and you'll also pass Blackmore Lake. While these are natural water sources, it's always recommended to filter or treat any water collected from them before drinking. It's best to carry sufficient water for your entire hike, especially for the longer summit attempt.

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