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10,497 ft · Cascade Range, Oregon

Mount Jefferson

Mount Jefferson is a 10,497 ft peak in the Cascade Range, Oregon. The standard route is the Via Pamelia Lake Trail and PCT: 21 mi, 7,440 ft of gain, Class 4.

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Mount Jefferson in the Cascade Range, Oregon

Mount Jefferson at a glance

  • Elevation10,497 ft3,199 m
  • RouteVia Pamelia Lake Trail and PCTClass 4
  • Distance21 mi7,440 ft gain
  • Time2 – 3 daysVery Hard effort
  • SeasonMay – Jul
  • RangeCascade RangeOregon

Climbing the Via Pamelia Lake Trail and PCT

From Salem, Oregon, take Highway 22 and forest roads to the Whitewater or Pamelia Lake trailheads, then backpack to a high camp near Jefferson Park. A Central Cascades limited-entry wilderness permit is required in season (Recreation.gov), so reserve ahead. Oregon second-highest peak is a serious climb, with loose Class 3 to 4 rock and often a snow or ice traverse to the summit pinnacle. Rope, helmet, crampons, and ice axe are recommended, and the rotten summit block turns many parties back. Start early to keep snow firm and reduce rockfall.

Gear and hazards

What to bring

  • Backpack (50–60 L)
  • Water
  • Water filter
  • First aid kit
  • Whistle
  • Offline maps
  • Paper map
  • Compass
  • GPS device
  • Satellite communicator
  • Headlamp
  • Power bank
  • Emergency bivy
  • Mountaineering boots
  • Gaiters
  • Crampons
  • Ice axe
  • Helmet
  • Rope
  • Harness
  • Carabiners
  • Belay device
  • Trekking poles
  • Base layer
  • Midlayer
  • Insulated jacket
  • Hardshell jacket
  • Hardshell pants
  • Warm hat
  • Midweight gloves
  • Heavyweight gloves
  • Buff
  • Sun hat
  • Glacier glasses
  • Goggles
  • Sunscreen
  • Sleeping bag
  • Sleeping pad

What to watch for

  • Technical climbing
  • Avalanches
  • Rockfall
  • Loose rock
  • Snow near summit
  • Ice near summit
  • Steep exposure
  • High altitude
  • High winds
  • Storms
  • Low visibility
  • Rapid weather shifts
  • Remote location
  • Glacier travel
  • Crevasses
  • Icy summit conditions

Quests with Mount Jefferson

Frequently asked questions

How tall is Mount Jefferson?

Mount Jefferson is 10,497 feet (3,199 m) tall. It is in the Cascade Range, Oregon.

How hard is it to climb Mount Jefferson?

The Via Pamelia Lake Trail and PCT is Class 4, which means exposed scrambling, where many parties bring a rope. Yak rates the overall effort very hard: 21 miles with 7,440 feet of elevation gain.

How many days does it take to climb Mount Jefferson?

Most climbers plan 2 – 3 days for the Via Pamelia Lake Trail and PCT, with at least one night on the mountain.

Is Mount Jefferson dangerous to climb?

It has real risks: avalanche and icefall danger, crevasses on the glacier and exposed sections where a fall would be serious. Teams rope up for glacier travel, and many first-timers climb with a guide.

Do you need crampons and an ice axe for Mount Jefferson?

Plan on it. Crampons and an ice axe are on the gear list for the Via Pamelia Lake Trail and PCT for the snow and ice on the upper mountain, along with mountaineering boots that take crampons. Glacier travel also means a rope, harness and crevasse rescue skills. Conditions vary through the season, so check recent reports before you go.

When is the best time to climb Mount Jefferson?

The usual climbing window is May to July. Outside it, expect snow, storms or closed access, and check the summit forecast before you go.

Climb Mount Jefferson 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

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