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11,240 ft · Bow Range, Alberta/British Columbia

Deltaform Mountain

Deltaform Mountain is an 11,240 ft peak in the Bow Range, Alberta/British Columbia. The standard route is the Northwest Ridge via Neptuak: 15 mi, 7,582 ft of gain, Class 5.

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Deltaform Mountain in the Bow Range, Alberta/British Columbia

Deltaform Mountain at a glance

  • Elevation11,240 ft3,425 m
  • RouteNorthwest Ridge via NeptuakClass 5
  • Distance15 mi7,582 ft gain
  • Time2 daysExtreme effort
  • SeasonJul – Sep
  • RangeBow RangeAlberta/British Columbia

Climbing the Northwest Ridge via Neptuak

From Lake Louise, take a Parks Canada shuttle to Moraine Lake (the road is closed to private vehicles) and hike 9.6 km up the Valley of the Ten Peaks to Wenkchemna Pass. Climb the Northwest Ridge of Neptuak (4th and low 5th class), descend with rappels to the Neptuak-Deltaform col bivy, then follow Deltaform's Northwest Ridge (II 5.5, often called III 5.6) to a notch rappel below the summit. The rock is shattered limestone with steady rockfall. Plan two days and many rappels on descent. A Parks Canada backcountry permit is needed to bivy, plus a Parks Canada shuttle reservation and a Parks Canada pass.

Gear and hazards

What to bring

  • Backpack (55–75 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
  • Helmet
  • Harness
  • Rope
  • Belay Device
  • Carabiners

What to watch for

  • Technical climbing
  • Loose rock
  • Rockfall
  • Steep exposure

Quests with Deltaform Mountain

Peaks near Deltaform Mountain

  1. Hungabee Mountain

    Hungabee Mountain

    11,457 ft · 2.7 mi away

  2. Mount Temple

    Mount Temple

    11,637 ft · 3.8 mi away

  3. Mount Lefroy

    Mount Lefroy

    11,230 ft · 4.4 mi away

  4. Mount Huber

    Mount Huber

    10,984 ft · 5.5 mi away

Frequently asked questions

How tall is Deltaform Mountain?

Deltaform Mountain is 11,240 feet (3,425 m) tall. It is in the Bow Range, Alberta/British Columbia.

How does Deltaform Mountain rank among the Canadian Rockies 11,000ers?

At 11,240 feet, Deltaform Mountain is the 26th highest of the 54 Canadian Rockies 11,000ers. The highest is Mount Robson.

How hard is it to climb Deltaform Mountain?

The Northwest Ridge via Neptuak is Class 5, which means technical climbing with a rope and protection. Yak rates the overall effort extreme: 15 miles with 7,582 feet of elevation gain.

How many days does it take to climb Deltaform Mountain?

Most climbers plan 2 days for the Northwest Ridge via Neptuak, with at least one night on the mountain.

Is Deltaform Mountain dangerous to climb?

It has real risks: exposed sections where a fall would be serious and rockfall from loose rock. Go with an experienced partner, wear a helmet, test holds before you trust them and turn back if the rock is wet or icy.

Do you need a rope to climb Deltaform Mountain?

Most parties bring one. The Northwest Ridge via Neptuak is Class 5, and the gear list includes a rope, harness and belay device.

When is the best time to climb Deltaform Mountain?

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

Climb Deltaform Mountain 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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