Bolam Glacier, Glacier in Siskiyou County, United States.
Bolam Glacier is a major ice field on the northern slope of Mount Shasta that spans several kilometers across the mountain's high terrain. The ice mass descends from upper elevation zones down toward more accessible lower slopes.
This ice field formed during colder periods on Mount Shasta like other glaciers in the high Cascades region. Unlike many neighboring glaciers, its behavior over recent decades has set it apart from typical regional patterns.
The glacier serves as a training ground for mountain climbers developing their skills in glacier navigation and ice climbing techniques.
Visitors should prepare for extreme elevation and cold conditions year-round on this mountain. The warmer months offer better conditions for reaching the upper areas where the ice is more accessible.
This glacier ranks as California's second longest and fourth most voluminous ice mass, covering a drainage area of 1.03 square kilometers.
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