Firn and Firn Line Glossary of Hiking Terms
Firn(also called neve): 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.
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. Overlord Glacier is another amazing glacier that can be hiked to in Whistler. Click the image below to see an aerial video of Overlord Glacier as well as Adit Lakes, The Fissile and Russet Lake.
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. 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.
Glossary of Hiking Terms Whistler Hiking Trails