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Hiking trails & Routes
United States
Montana
Sanders County

Jackpine Flats Campground to Sex Peak Lookout

Routes
Hiking trails & Routes
United States
Montana
Sanders County

Jackpine Flats Campground to Sex Peak Lookout

Hard

5.0

(5587)

14,750

hikers

Jackpine Flats Campground to Sex Peak Lookout

08:54

29.9km

910m

Hiking

Hike from Jackpine Flats Campground to Sex Peak Lookout, a difficult 18.6-mile route offering panoramic views of the Clarks Fork Valley.

Last updated: February 26, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Kootenai National Forest

Waypoints

A

Start point

Get Directions

1

7 m

Jackpine Flats Campground

Highlight • Rest Area

Jackpine Flats Campground is operated by the U.S. Forest Service. There is a vault toilet at the site, but there is limited space to camp. There is no fee to …

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2

14.9 km

Sex Peak Lookout

Highlight • Mountain Hut

A 14'x14' fire lookout building sits on the summit of 5,772-foot Sex Peak. The lookout was built in the late 1940s, replacing the original structure from the '20s. The lookout …

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B

29.9 km

End point

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Way Types & Surfaces

Way Types

15.2 km

13.4 km

1.35 km

Surfaces

15.2 km

12.4 km

1.35 km

922 m

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Elevation

Elevation

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Weather

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Saturday 18 July

26°C

16°C

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Frequently Asked Questions

Where can I park to start the hike to Sex Peak Lookout?

You can typically park at or near the Jackpine Flats Campground. The route primarily follows Forest Service roads, which are generally accessible by car, especially Road 2222. Always check local conditions before heading out, as seasonal closures can affect road access.

Are there any permits or fees required for hiking in Kootenai National Forest?

Generally, no specific hiking permits are required for day use on trails within the Kootenai National Forest. However, if you plan to stay overnight at the Sex Peak Lookout, which is available for rental, you will need to make reservations and pay a fee through recreation.gov. Always check the latest regulations on the USDA Forest Service website.

Is the trail to Sex Peak Lookout dog-friendly?

Yes, the Kootenai National Forest generally allows dogs on trails. However, they should be kept under control, preferably on a leash, to protect wildlife and ensure a pleasant experience for all hikers. Be prepared to pack out all pet waste.

What is the best time of year to hike to Sex Peak Lookout?

The Sex Peak Lookout is typically open seasonally from late June through mid-October. This period offers the most favorable conditions, with less snow and generally clear roads. Summer provides opportunities for wild berry picking, while fall brings vibrant foliage. Always check current weather and road conditions before your trip.

What is the terrain like on the way to Sex Peak Lookout?

The route primarily follows Forest Service roads through the mountainous terrain of the Kootenai National Forest. Expect a sustained incline as you gain elevation towards the lookout. The path is largely unpaved, with varying conditions, and passes through dense evergreen forests. While not a traditional singletrack trail, it offers a challenging hike on a maintained road.

What kind of views and natural features can I expect along the route?

From the Sex Peak Lookout, you'll be treated to panoramic vistas of the Clarks Fork Valley, with the majestic Bitterroot Mountains to the west and the Cabinet Range to the east. The journey itself offers views of dense evergreen forests and mountainous landscapes. The lookout sits on a mound of rocks, providing an excellent vantage point for sunrises, sunsets, and stargazing.

What wildlife might I encounter on this hike?

The Kootenai National Forest is rich in wildlife. Hikers have the chance to spot deer, elk, and moose. More elusive species like grizzly and black bears, wolves, and mountain lions also inhabit the area. Always carry bear spray and know how to use it, and be aware of your surroundings.

Is the Sex Peak Lookout available for overnight stays?

Yes, the Sex Peak Lookout is available for rental and offers a rustic overnight experience. It includes basic amenities like beds, a wood stove, and an outhouse. However, you'll need to bring all your own water, food, and supplies. Reservations are highly recommended and can be made through recreation.gov.

Does the route intersect with other well-known paths?

Yes, the route from Jackpine Flats Campground to Sex Peak Lookout largely follows Forest Service roads. A significant portion of the journey, approximately 43%, utilizes National Forest Development Road 222.

What should I pack for this hike?

Given the length and elevation gain, pack plenty of water, snacks, and appropriate layers for changing mountain weather. Bear spray is highly recommended due to the presence of bears. If staying overnight at the lookout, remember to bring all your own food, water, and bedding. A map and compass or GPS device are also essential for navigation on Forest Service roads.

Is this a suitable hike for beginners or families with young children?

This hike is rated as difficult due to its significant distance (nearly 30 km) and elevation gain (over 900 meters). While it follows Forest Service roads, the sustained incline makes it challenging. It is generally not recommended for beginners or families with young children unless they are experienced hikers accustomed to long distances and elevation changes. Shorter, less strenuous options might be available closer to Jackpine Flats Campground.

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