- Big Four Mountain
Infobox Mountain
Name = Big Four Mountain
Photo = Bigfour.jpg
Caption = Big Four Mountain
Elevation = 6,138 ft (1,880 m)
Location = Washington State, USA
Range = Cascades
Prominence =
Coordinates = coord|48|02|35|N|121|31|26|W|type:mountain_region:US
Topographic
First ascent =
Easiest route =Big Four is a mountain in the
Cascade Range , located convert|20|mi|km east ofGranite Falls, Washington . The mountain is about convert|6135|ft|m|abbr=on. high and on its north flank, debris piles form from avalanches and are able to remain there year round because of the continuous shade provided by the mountain. During the summer, snowmelt streams flow beneath the debris piles and causecave s to be formed in the ice. The caves vary in size from season to season and are unpredictably dangerous. The large snowfield that forms these caves is probably the lowest snowfield in the lower 48 states, as it lies nowhere close to the region of permanent snow since it's only at convert|2000|ft|m|abbr=on. elevation at its lower end and only over convert|2400|ft|m|abbr=on. at its higher end. This mountain is open to the public via a trail which travels to the largest snowfield, which is off-limits due to a cave-in, killing one and seriously injuring another in 1999.Related Links
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Big Four Ice Caves External links
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