Skip to content

Map Activities Discover Guides Trips Saves

A map of everywhere you can sleep outside in the U.S., with the weather and cell signal to match. Built to stay free.

Explore

Map
Hiking
State guides
Discover

Plan

Trip planner
My trips
Saves
Offline downloads

About

Privacy
Data deletion

© 2026 Roaming.Camp · Data from NPS, Recreation.gov, BLM, USFS, NWS, and the FCC.Operating on ceded ancestral land.Photography via Unsplash.

Leave it better than you found it.

Hike

Boulder Lake

Passes Thirsty Mountain
Inside Kootenai National Forest
2,264 ft of climbing

10.8 mi out & back · 2,264 ft gain · 6,633 ft high point · Hard

In Kootenai National Forest · Montana · U.S. Forest Service

About Elevation Highlights Map Camp near here More hikes

About this hike

Boulder Lake is a 10.8-mile out and back in Kootenai National Forest climbing 2,264 feet along Thirsty Mountain.

Elevation

2,264 ft of gain round trip.

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

1.9 mi from the trailhead
Webb Mtn. Lookout Rental
Campground · Montana

More hikes nearby

Ranked the same way, within twenty-five miles.

15 mi from you
East Branch/lawrence Mountain
- Summits Lost Soul Mountain
- Inside Kootenai National Forest
- 2,504 ft of climbing
6.8 mi out & back · 2,504 ft gain · Hard
Kootenai National Forest · Camp 5 mi away

Out: 1,320 ft up, returns the same way. Source: USGS 3DEP.

Highlights

What the trail reaches, measured from the start.

Thirsty MountainAlong the way · 0.3 mi in

Map

The route at the trailhead. Drag with two fingers, or hold a key to zoom.

Trail data: USFS, NPS, © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP via Mapzen terrain tiles. Nearby reading: Wikipedia. Download the trail and feature data.

At a glance

Length: 10.8 mi
Shape: Out & back
Gain: 2,264 ft round trip
High point: 6,633 ft
Low point: 5,448 ft
Difficulty: HardFrom 10.8 mi and 2,264 ft of climbing
Managed by: U.S. Forest Service
State: Montana
Camps within 15 mi: 11
Trailhead: 48.8177° N · 115.3859° W

Get directions Open the map

7.4 mi from the trailhead

Peck Gulch Campground

Campground · Idaho

8.8 mi from the trailhead

Camp 32

Campground

9 mi from you

Vinal Creek

Summits Mount Henry
Inside Kootenai National Forest
4,462 ft of climbing

15.3 mi out & back · 4,462 ft gain · Very hard

Kootenai National Forest · Camp 3 mi away

Cliff Point/thirsty Mountain

Summits Webb Mountain
Inside Kootenai National Forest
4,993 ft of climbing

19.7 mi out & back · 4,993 ft gain · Very hard

Kootenai National Forest · Camp 3 mi away

Roderick Ridge/independence

Summits Pleasant View Mountain
Inside Kootenai National Forest
4,266 ft of climbing

12.7 mi out & back · 4,266 ft gain · Very hard

Kootenai National Forest · Camp 3 mi away

Webb Mountain

Summits Webb Mountain
Inside Kootenai National Forest
3,387 ft of climbing

7.6 mi out & back · 3,387 ft gain · Very hard

Kootenai National Forest · Camp 2 mi away

Wood Mountain

Summits Wood Mountain
Inside Kootenai National Forest
2,666 ft of climbing

7.5 mi out & back · 2,666 ft gain · Hard

Kootenai National Forest · Camp 4 mi away

More like this

Hikes that read like this one, wherever they are.

Boulder Mountain
- Passes Boulder Mountain
- Inside Kootenai National Forest
- 1,447 ft of climbing
6.2 mi out & back · 1,447 ft gain · Hard
Kootenai National Forest · Camp 5 mi away
Lower Boulder
- Near Lake Koocanusa
- Inside Kootenai National Forest
- 1,132 ft of climbing
5.0 mi out & back · 1,132 ft gain · Moderate
Kootenai National Forest · Camp 3 mi away
Spruce Lake
- Inside Kootenai National Forest
- 3,749 ft of climbing
20.4 mi out & back · 3,749 ft gain · Very hard
Kootenai National Forest · Camp 5 mi away
Parmenter Creek
- Inside Kootenai National Forest
- 1,818 ft of climbing
10.1 mi out & back · 1,818 ft gain · Hard
Kootenai National Forest · Camp 10 mi away

Weather

7-day forecast

Sat42°36°Mostly Sunny
Sun40°28°Rain And Snow Showers
Mon36°31°Partly Sunny
Tue38°37°Chance Rain And Snow Showers
Wed45°37°Mostly Cloudy
Thu46°36°Partly Sunny
Fri44°Slight Chance Light Snow

Sat: Mostly Sunny · wind 5 to 12 mph SW

National Weather Service · refreshed hourly

Signal

Cell coverage here

AT&TLTE · Poor
T-MobileLTE · Fair

FCC coverage data · signal varies in remote terrain