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Hiking trails & Routes
United States
Montana
Missoula County
Rattlesnake National Recreation Area

Carter Lake via Rattlesnake Trail

Hard

4.8

(7585)

19,151

hikers

Carter Lake via Rattlesnake Trail

14:22

53.1km

1,000m

Hiking

Embark on a challenging 33.0-mile (53.1 km) hike through the Rattlesnake National Recreation Area, where you will experience a true wilderness journey. This difficult route involves a significant 3284 feet (1001 metres) of elevation gain, taking approximately 14 hours and 22 minutes to complete. As you traverse diverse landscapes, the…

Last updated: April 23, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Waypoints

A

Start point

Parking

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43.3 km

Waterfall

Waterfall

B

53.1 km

End point

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Way Types & Surfaces

Way Types

51.4 km

1.58 km

< 100 m

Surfaces

48.0 km

5.05 km

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Elevation

Elevation

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Weather

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Tuesday 26 May

21°C

11°C

93 %

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Max wind speed: 10.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Where can I park to access the Carter Lake via Rattlesnake Trail?

Access to the Rattlesnake Wilderness Area, where the trail is located, typically begins from the main Rattlesnake National Recreation Area trailhead. This is a common starting point, though other trailheads like West Fork Gold Creek or Ravine Creek can also lead to Carter Lake, offering varying distances.

How challenging is the hike to Carter Lake?

This hike is considered moderately challenging. While the Komoot tour data classifies it as 'difficult' due to its length and elevation, the trail involves significant elevation gain and switchbacks, especially as you approach Carter Lake. Hikers should be prepared for rugged and steep terrain, particularly in the wilderness sections. The total travel distance to the lake can range from 8 to 16 miles, depending on your chosen starting trailhead.

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

The best time to hike this trail is generally during the warmer months when snow has melted and conditions are more favorable. Given its location in a wilderness area, seasonal conditions can vary, so always check local weather and trail reports before heading out.

Do I need a permit or pay an entrance fee for the Rattlesnake Wilderness Area?

The Rattlesnake Wilderness Area is part of the Rattlesnake National Recreation Area. While specific entrance fees for the recreation area are not mentioned, it's always wise to check current regulations for the Rattlesnake Wilderness Area regarding permits, especially for overnight stays or specific activities. You can often find this information on the official Montana government website or the local Forest Service office.

Is the Carter Lake via Rattlesnake Trail dog-friendly?

As this trail is located within the Rattlesnake Wilderness Area, dogs are generally permitted. However, it is crucial to adhere to 'Leave No Trace' principles, which includes properly managing your pet. Always keep dogs under control, preferably on a leash, and pack out all waste. Check local regulations for any specific leash requirements or restrictions within the wilderness area.

What kind of terrain and scenery can I expect on the way to Carter Lake?

You can expect diverse and rugged terrain. The trail leads through varied landscapes, becoming gradually steeper with numerous switchbacks as you gain elevation. Vegetation can be thick in some areas, offering a true wilderness feel. The scenery includes beautiful glacial cirque lakes like Carter Lake (12.9 acres) and rugged landscapes with notable features such as the northeast side of Mosquito Peak towering over Little Lake.

What wildlife might I encounter on the trail?

The Rattlesnake Wilderness Area is home to various wildlife. Carter Lake itself supports a wild westslope cutthroat trout population that reproduces naturally. While specific sightings are never guaranteed, you are in a remote wilderness setting, so keep an eye out for local fauna.

Are there any notable historical or natural features along the route?

Yes, Carter Lake has historical significance. It was artificially impounded by a dam in 1921 to increase its storage volume, and this structure still influences the lake's water levels today. The entire area is part of a designated wilderness, offering a true backcountry experience with light human use.

Are there different routes to Carter Lake, and how do they vary?

Yes, there are several USFS routes to choose from. Depending on your starting trailhead, such as West Fork Gold Creek, Ravine Creek, or the main Rattlesnake National Recreation Area trailhead, the total travel distance to Carter Lake can range significantly from 8 to 16 miles. This allows hikers to choose a route that best suits their desired distance and challenge level.

Is this trail suitable for families or beginners?

Given its 'difficult' classification in Komoot and the description of it being 'moderately challenging' with significant elevation gain and rugged terrain, this trail is generally not recommended for beginners or very young children. It requires willpower and sufficient water, making it more suitable for experienced hikers or families with older, fit children accustomed to demanding trails.

Does the trail intersect with other paths?

Yes, the route you'll be following utilizes sections of the Rattlesnake Trail multiple times, making up a significant portion of the journey to Carter Lake.

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