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13,101 ft · San Juan Mountains, Colorado

Tomboy Peak

Tomboy Peak is a 13,101 ft peak in the San Juan Mountains, Colorado. The standard route is the Tomboy Peak via Middle Basin: 4 mi, 1,540 ft of gain, Class 2.

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Tomboy Peak in the San Juan Mountains, Colorado

Tomboy Peak at a glance

  • Elevation13,101 ft3,993 m
  • RouteTomboy Peak via Middle BasinClass 2
  • Distance4 mi1,540 ft gain
  • Time3 – 5 hrsHard effort
  • SeasonJul – Sep
  • RangeSan Juan MountainsColorado

Climbing the Tomboy Peak via Middle Basin

Tomboy Peak sits in the San Juan Mountains. The usual ascent is Tomboy Peak via Middle Basin, rated Class 2. Plan about 4.4 miles round-trip with roughly 1,540 ft of gain from about 11,300 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 Tomboy Peak

Peaks near Tomboy Peak

  1. Chicago Peak

    Chicago Peak

    13,391 ft · 0.5 mi away

  2. T 5

    T 5

    13,437 ft · 1.1 mi away

  3. Telluride Peak

    Telluride Peak

    13,514 ft · 1.8 mi away

  4. T 7

    T 7

    13,360 ft · 1.8 mi away

Frequently asked questions

How tall is Tomboy Peak?

Tomboy Peak is 13,101 feet (3,993 m) tall. It is in the San Juan Mountains, Colorado. It is also known as Tomboy Peak.

How does Tomboy Peak rank among the Colorado 13ers?

At 13,101 feet, Tomboy Peak is the 515th highest of the 582 Colorado 13ers. The highest is Grizzly Peak.

How hard is it to hike Tomboy Peak?

The Tomboy Peak via Middle Basin is Class 2, which means off-trail hiking with some use of your hands for balance. Yak rates the overall effort hard: 4 miles with 1,540 feet of elevation gain.

How long does it take to hike Tomboy Peak?

Most people take 3 – 5 hours round trip on the Tomboy Peak via Middle Basin, covering 4 miles with 1,540 feet of elevation gain, so most people do it in a day.

Can a beginner hike Tomboy Peak?

The Tomboy Peak via Middle Basin needs no climbing skills, but it is a hard day: 4 miles with 1,540 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 Tomboy Peak?

You might. Most people feel the altitude above 8,000 feet, and Tomboy Peak reaches 13,101 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 Tomboy Peak?

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 Tomboy Peak?

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 Tomboy Peak with Yak

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