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13,739 ft · San Juan Mountains, Colorado

T 0

T 0 is a 13,739 ft peak in the San Juan Mountains, Colorado. The standard route is the T.0 SW Ridges: 9 mi, 5,065 ft of gain, Class 2.

T 0 in the San Juan Mountains, Colorado

T 0 at a glance

  • Elevation13,739 ft4,187 m
  • RouteT.0 SW RidgesClass 2
  • Distance9 mi5,065 ft gain
  • Time7 – 9 hrsHard effort
  • SeasonJul – Sep
  • RangeSan Juan MountainsColorado

Climbing the T.0 SW Ridges

T 0 sits in the San Juan Mountains. The usual ascent is T.0 SW Ridges, rated Class 2. Plan about 9.5 miles round-trip with roughly 5,065 ft of gain from about 9,140 ft. Expect high clearance for the drive. 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. Carry extra water above treeline.

Gear and hazards

What to bring

  • Backpack (35–55 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 T 0

Peaks near T 0

  1. S 6

    S 6

    13,455 ft · 1.0 mi away

  2. Mears Peak

    Mears Peak

    13,503 ft · 1.3 mi away

  3. S 4

    S 4

    13,256 ft · 1.4 mi away

  4. Dallas Peak

    Dallas Peak

    13,812 ft · 1.4 mi away

Frequently asked questions

How tall is T 0?

T 0 is 13,739 feet (4,187 m) tall. It is in the San Juan Mountains, Colorado. It is also known as T 0.

How does T 0 rank among the Colorado 13ers?

At 13,739 feet, T 0 is the 80th highest of the 582 Colorado 13ers. The highest is Grizzly Peak.

How hard is it to hike T 0?

The T.0 SW Ridges 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 5,065 feet of elevation gain.

How long does it take to hike T 0?

Most people take 7 – 9 hours round trip on the T.0 SW Ridges, covering 9 miles with 5,065 feet of elevation gain, so most people do it in a day.

Can a beginner hike T 0?

The T.0 SW Ridges needs no climbing skills, but it is a hard day: 9 miles with 5,065 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 T 0?

You might. Most people feel the altitude above 8,000 feet, and T 0 reaches 13,739 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 T 0?

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 T 0?

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 T 0 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