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Bergschrund - Whistler Hiking Glossary

Bergschrund or Schrund                      Glossary of Hiking Terms


Bergschrund or abbreviated schrund: a crevasse that forms from the separation of moving glacier ice from the stagnant ice above. Characterized by a deep cut, horizontal, along a steep slope. Often extending extremely deep, over 100 metres down to bedrock. Extremely dangerous as they are filled in winter by avalanches and gradually open in the summer.  The Wedge glacier at Wedgemount Lake is a great and relatively safe way to view bergschrund near Whistler.  At the far end of Wedgemount Lake the beautiful glacier window can be seen with water flowing down into the lake.  From the scree field below the glacier you can see the crumbling bergschrund separate and fall away from the glacier.  Up on the glacier you fill find several crevasses.  Many are just a few centimetres wide, though several metres deep.  Hiking along the left side of the glacier is relatively safe, however the right size of the glacier is extremely dangerous as the bergschrund vary in width and can be measure only in metres instead of centimetres.  Hikers venturing up the glacier are advised to keep far to the left or only at the safe, lower edges near the glacier window.

Bergschrund on Overlord Glacier in Whistler

Massive and menacing, the Overlord Glacier enters the valley between Whistler and Blackcomb mountains in Garibaldi Provincial Park.  These images are from Russet Lake in Garibaldi Park.  Russet Lake is a fantastic alpine lake that lays at the base of the Fissile.  The Fissile is the strikingly bronze coloured mountain so visible from Whistler Village.  From the Village look into the distance at the Peak to Peak hanging between Whistler and Blackcomb and you will see the Fissile.  Its pyramid shape in the distance perfectly separates the two mountains.

Bergschrund on Overlord Glacier

Though Russet Lake is not terribly impressive in terms of size or colour, the valley around it is remarkably beautiful.  The colours change from moment to moment in and extraordinary way.  The distinctive colour of the Fissile and the stark grey of the mountains around contrast amazingly with the blue of the lake and green grass in the valley.  So many different factors fill the place with colour. Wedgemount Lake and the amazing Wedgemount Glacier(pictured below) is zigzagged with bergschrund.

Aerial Video of Wedge Glacier Bergschrund

Extending from Wedge Mountain to Wedgemount Lake, the Wedge Glacier flows down the valley.  Extensively lined with schrund, the Wedge Glacier is a great place to see bergschrund up close in Whistler.

Wedge Glacier Bergschrund

Click the image below to see an aerial view of bergschrund on Wedge Glacier.  Wedgemount Lake is a very challenging 7 kilometre hike to this spectacular alpine paradise in Whistler.  Wedgemount Lake is one of the most spectacular hikes in Garibaldi Park. Though it is a relentlessly exhausting, steep hike, it is mercifully short at only 7 kilometres (one way).  The elevation gain in that short distance is over 1200 metres which makes it a much steeper hike than most other Whistler hiking trails.  Compared with other Whistler hikes, Wedgemount Lake is half the roundtrip distance of either Black Tusk or Panorama Ridge, for example,  at 13.5k and 15k respectively (one way).

Aerial Video of Bergschrund on Wedge Glacier

At a fast hiking pace you can reach Wedgemount Lake from the trailhead in just an hour and a half but at a leisurely or backpack laden pace you will likely take over two hours.  The trail is well marked and well used.  The steepness of the trail doesn't require any technical skill, however that last kilometre before the lake you will be scrambling on all fours quite a bit.

Rethel Mountain Aerial View

The sheltered valley, beautiful turquoise lake, wonderfully huge glacier across the valley and brutally jagged mountains all around all contribute to making Wedgemount Lake something special.  It's challenging and exhausting to hike to and an absolute paradise to relax in.  Down by the lakeside you can actually find two recliner chairs, built out of the rocks by the lake.  Such a perfect way to enjoy the sun rising over the not-so-distant glacier across the lake.

Glossary of Hiking Terms                          Whistler Hiking Trails


  • Cirque: a glacier-carved bowl or amphitheatre in the mountains.  To form, the glacier must be a combination of size, a certain slope and more unexpectedly, a certain angle away from the sun. In the northern hemisphere, this means the glacier must be on the northeast slope of the mountain, away from the suns Cirque - Whistler Hiking Glossaryrays and the prevailing winds. Thick snow, protected in this way, grows thicker into glacial ice, then a process of freeze-thaw called nivation, chews at the lower rocks, hollowing out a deep basin. Eventually a magnificently circular lake is formed with steep sloping sides all around.  Cirque Lake in Whistler is a wonderful example of a cirque lake.

  • Class 1,2,3,4,5 Terrain Rating System: a rating system to define hiking, scrambling and climbing terrain levels of difficulty.  Separated into 5 levels of difficulty ranging from class 1 to class 5.  Class 1 is easy hiking, to class 5 terrain, which is very difficult terrain requiring ropes.   Class 5 Terrain: technical Class Rating Systemclimbing terrain.  Rope required by most climbers.  If you are looking at a vertical rock wall, you are effectively looking at class 5 terrain.  A typical gym climbing wall is replica of a class 5 terrain rock wall.  Class 4 Terrain is one grade easier than class 5 terrain.  Class 4 terrain is defined as very steep terrain which rope belays are recommended.  Though experienced climbers will find class 4 terrain relatively easy and safe to navigate, novices to climbing will find class 4 terrain difficult, frightening and dangerous.  The Lions in North Vancouver requires climbing a short section of class 4 terrain to reach the summit.

  • Cross-ditch: a ditch that carries water from one side of a road to the other, deeper than a waterbar.  Though useful in directing water across roads, natural cross-ditches form on logging roads and can become so deep as to become serious obstacles to vehicles.Drumlin - Whistler Hiking Glossary

  • Culvert: a device used to channel water under a road or embankment.  Many hiking trails in BC have culverts to direct water under, rather than over hiking trails to prevent erosion.

  • Diagonal Crevasses: form at an angle to the flow of a glacier.  These are normally found along the edges where a glacier ends.

  • Drumlin: a ridge or hill formed from glacial debris.  From the Gaelic “ridge”.  Large drumlins often mark the final edges or border of a glaciers path.  Drumlin's are generally about 1 to 2 kilometres long and between 100 and 500 metres wide.  Most drumlins are less than 50 metres high.Erratic - Whistler Hiking Glossary

  • Erratic or Glacier Erratic: is a piece of rock that has been carried by glacial ice, often hundreds of kilometres. Characteristic of their massive size and improbable looking placement.  Erratics are frequently seen around Whistler and Garibaldi Provincial Park.  Either as bizarre curiosities or a place to relax in the sun.  On a sunny day, a large sun-facing erratic will often be warm and sometimes even hot, providing a comfortable and surreal place to rest.
  • Firn - Whistler Hiking GlossaryFirn: compacted, granular snow that has been accumulated from past seasons.  Firn is the building blocks of the ice that makes the glacier.  Firn is the intermediate stage between snow and glacial ice. Firn Line: separates the accumulation and ablation zones.  As you approach this area, you may see strips of snow in the ice.  Be cautious, as these could be snow bridges remaining over crevasses.  Snow bridges will be weakest lower on the glacier as you enter the accumulation zone.  The firn line changes annually.
  • Gendarme: a pinnacle sticking up out of a ridge. A steep sidedGendarme - Whistler Hiking Glossary rock formation along a ridge, “guarding” the summit.  From the French ”man-at-arms”.

  • Glacier Window: the cave-like opening at the mouth of a glacier where meltwater runs out.  Glacier windows are often extraordinarily beautiful.  A blue glow often colours the inside and the walls are filled with centuries old glacial till.  You can often see deep into the clear walls and the enormous magnitude of a glacier can be appreciated from up close.  The popular and easily accessible glacier window at the terminus of the WedgeGlacier Window - Whistler Hiking Glossary Glacier at Wedgemount Lake is a stunning example of this.

  • Glissade: descending down a snow slope on foot, partly sliding.  A quick alternative to simply hiking down a snow slope.

  • Hanging Glacier: separating portions of glaciers, hanging on ridgelines or cliffs.  Extremely dangerous, hanging glaciers are frequently the cause of death of mountaineers.

  • Headwall: a steep section of rock or cliff. In a glacial cirque it is it's highest cliff.

  • Highpointing: the sport of hiking to as many high points(mountain peaks) as possible in a given area.  For Highpointing - Whistler Hiking Glossaryexample, highpointing the lower 48 states in the United states.  This was first achieved in 1936 by A.H. Marshall.  In 1966 Vin Hoeman highpointed all 50 states.  It is estimated that over 250 people have highpointed all of the US states.  Highpointing is similar peakbagging, however peakbagging is the sport of climbing several peaks in a given area above a certain elevation.  For example, a highpointer may climb the summit of Wedge Mountain, the highest peak in the Garibaldi Ranges, then move to another mountain range.  Whereas a peakbagger may summit Wedge Mountain, then Black Tusk, Panorama Ridge, Mount Garibaldi and many more high summits in the region.

  • Hoary Marmot: the cute, invariably pudgy, twenty plus pound ground squirrels that have evolved to live quite happily in the hostile alpine areas of much of the world. In the northwest of North America, marmots have a distinct grey in their hair, a hoary colour, so have been named hoary marmots. They manage to survive quite happily in the alpine, largely by hibernating for 8 months of the year and largely for having a surprisingly varied array of food in such an inhospitable Hoary Marmot - Whistler Hiking Glossaryenvironment. They live off of grasses, berries, lichens, mosses, and roots and flowers. And live quite well it seems, as they always look chubby, which has one great drawback. They are sought after by bears and wolves. They have a wonderful defense system though. They are constantly on watch and whistle loudly at the first sign of danger, alerting the colony. The prevalence of these "whistlers" as they came to be locally called, in the early days of London Mountain resulted in it's name being changed to Whistler Mountain in the 60's. Hiking on Whistler, Blackcomb or Wedgemount Lake in the summer will almost guarantee an encounter with a chubby, jolly little whistler marmot..

Joffre Lakes Aerial Video - Whistler TrailsAncient Cedars Aerial Video - Whistler TrailsBrandywine Falls Aerial Video - Whistler Trails

Callaghan Lake Aerial Video - Whistler TrailsCirque Lake Aerial 3 2Callaghan Lake Provincial Park Aerial Video

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