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- UN 13121
13,121 ft · San Juan Mountains, Colorado
UN 13121
UN 13121 is a 13,121 ft peak in the San Juan Mountains, Colorado. The standard route is the UN13,121 South Ridge: 9 mi, 3,560 ft of gain, Class 2.
UN 13121 at a glance
- Elevation13,121 ft3,999 m
- RouteUN13,121 South RidgeClass 2
- Distance9 mi3,560 ft gain
- Time7 – 9 hrsHard effort
- SeasonJul – Sep
- RangeSan Juan MountainsColorado
Climbing the UN13,121 South Ridge
UN 13121 sits in the San Juan Mountains. The usual ascent is UN13,121 South Ridge, rated Class 2. Plan about 9.5 miles round-trip with roughly 3,560 ft of gain from about 11,800 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 (30–40 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 UN 13121
Colorado 13ersPeaks near UN 13121
Frequently asked questions
How tall is UN 13121?
UN 13121 is 13,121 feet (3,999 m) tall. It is in the San Juan Mountains, Colorado. It is also known as UN 13,121.
How does UN 13121 rank among the Colorado 13ers?
At 13,121 feet, UN 13121 is the 497th highest of the 582 Colorado 13ers. The highest is Grizzly Peak.
How hard is it to hike UN 13121?
The UN13,121 South Ridge is Class 2, which means off-trail hiking with some use of your hands for balance. Yak rates the overall effort hard: 9 miles with 3,560 feet of elevation gain.
How long does it take to hike UN 13121?
Most people take 7 – 9 hours round trip on the UN13,121 South Ridge, covering 9 miles with 3,560 feet of elevation gain, so most people do it in a day.
Can a beginner hike UN 13121?
The UN13,121 South Ridge needs no climbing skills, but it is a hard day: 9 miles with 3,560 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 UN 13121?
You might. Most people feel the altitude above 8,000 feet, and UN 13121 reaches 13,121 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 UN 13121?
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 UN 13121?
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 UN 13121 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