Crater Glacier, Glacier in Mount St Helens crater, United States.
The glacier occupies the horseshoe-shaped northern crater of Mount St Helens, reaching depths of 656 feet and containing a combination of ice and rock.
The glacier developed after the 1980 volcanic eruption, remaining unnoticed by scientists for two decades until its discovery in the late 1990s.
The Cowlitz tribe proposed naming it Tulutson Glacier in 2004, but the U.S. Board on Geographic Names selected Crater Glacier as the official designation.
The glacier advances at a rate of three feet per day, with fresh snow accumulation and rockfalls from surrounding cliffs contributing to its continuous growth.
The glacier contains an extensive network of ice caves and passageways stretching 7,900 feet, formed through interactions between ice and volcanic heat.
Location: Washington
GPS coordinates: 46.19670,-122.18800
Latest update: May 15, 2025 12:39
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