- …
- Yak
- Quests
- Colorado 13ers
- Brown Mtn
13,347 ft · San Juan Mountains, Colorado
Brown Mtn
Brown Mtn is a 13,347 ft peak in the San Juan Mountains, Colorado. The standard route is the Brown Mountain Southwest Ridge: 3 mi, 1,705 ft of gain, Class 2.

Brown Mtn at a glance
- Elevation13,347 ft4,068 m
- RouteBrown Mountain Southwest RidgeClass 2
- Distance3 mi1,705 ft gain
- Time2 – 4 hrsHard effort
- SeasonJul – Sep
- RangeSan Juan MountainsColorado
Climbing the Brown Mountain Southwest Ridge
Brown Mtn sits in the San Juan Mountains. The usual ascent is Brown Mountain Southwest Ridge, rated Class 2. Plan about 3 miles round-trip with roughly 1,705 ft of gain from about 11,635 ft. Expect a rough 4WD approach road. Summer monsoon storms build fast, so start early and be off the summit by early afternoon. Watch for loose rock, route-finding on talus, and brief exposed steps where the terrain steepens. Stats and approach details follow climb13ers.com. Bring layers for cold wind on the summit ridge.
Gear and hazards
What to bring
Backpack (25–35 L)
Hiking Boots
Water
Offline Maps
Headlamp
Satellite Communicator
Whistle
Sunglasses
Sunscreen
Sun Hat
Midlayer
Insulated Jacket
Hardshell Jacket
Warm Hat
Buff
Midweight Gloves
Trekking Poles
GPS Device
Power Bank
Water Filter
First-Aid Kit
Emergency Bivy
What to watch for
- Storms
- High altitude
- Route-finding difficulty
Quests with Brown Mtn
Peaks near Brown Mtn
Frequently asked questions
How tall is Brown Mtn?
Brown Mtn is 13,347 feet (4,068 m) tall. It is in the San Juan Mountains, Colorado.
How does Brown Mtn rank among the Colorado 13ers?
At 13,347 feet, Brown Mtn is the 307th highest of the 582 Colorado 13ers. The highest is Grizzly Peak.
How hard is it to hike Brown Mtn?
The Brown Mountain Southwest Ridge is Class 2, which means off-trail hiking with some use of your hands for balance. Yak rates the overall effort hard: 3 miles with 1,705 feet of elevation gain.
How long does it take to hike Brown Mtn?
Most people take 2 – 4 hours round trip on the Brown Mountain Southwest Ridge, covering 3 miles with 1,705 feet of elevation gain, so most people do it in a day.
Can a beginner hike Brown Mtn?
The Brown Mountain Southwest Ridge needs no climbing skills, but it is a hard day: 3 miles with 1,705 feet of elevation gain. Build up on shorter hikes first, start early and carry plenty of water and layers.
Will you get altitude sickness on Brown Mtn?
You might. Most people feel the altitude above 8,000 feet, and Brown Mtn reaches 13,347 feet. Spend a night or two at elevation first, drink plenty of water and turn back if a headache, nausea or dizziness gets worse.
What time should you start hiking Brown Mtn?
Early. Afternoon thunderstorms are common in summer, so aim to be off the summit and the exposed upper mountain by early afternoon.
When is the best time to hike Brown Mtn?
The usual hiking window is July to September. Outside it, expect snow, storms or closed access, and check the summit forecast before you go.
Climb Brown Mtn with Yak
Plan your route on a topo map, check the summit forecast, then log your climb and see what is left on your list



