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Geology and History

Geology and history of Glacier Peak.

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Geology and History of Glacier Peak

Glacier Peak (3214 m, 10544 ft) is a stratovolcano composed mainly of dacite, which is located about 100 km (65 mi) northeast of Seattle and 110 km (70 mi) south of the International Boundary with Canada. It lies in the rugged and scenic Glacier Peak Wilderness Area, in the Mt. Baker-Snoqualmie National Forest and rises only a few thousand feet above neighboring peaks that reach 2,700 m.
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Geology and History of Glacier Peak

Glacier Peak (3214 m, 10544 ft) is a stratovolcano composed mainly of dacite, which is located about 100 km (65 mi) northeast of Seattle and 110 km (70 mi) south of the International Boundary with Canada. It lies in the rugged and scenic Glacier Peak Wilderness Area, in the Mt. Baker-Snoqualmie National Forest and rises only a few thousand feet above neighboring peaks that reach 2,700 m.
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Eruption History of Glacier Peak

Timeline and information about past eruptions at Glacier Peak.
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Eruption History of Glacier Peak

Timeline and information about past eruptions at Glacier Peak.
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Summit of Glacier Peak

The uppermost 800 m (2,600 ft) of Glacier Peak can be subdivided into three parts, two false summits and the actual summit
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Summit of Glacier Peak

The uppermost 800 m (2,600 ft) of Glacier Peak can be subdivided into three parts, two false summits and the actual summit
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Future Eruptions at Glacier Peak

Glacier Peak may not erupt within our lifetimes, but if it does its geographic impact would vary depending on the size of the eruption, wind direction, and type of hazards produced.
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Future Eruptions at Glacier Peak

Glacier Peak may not erupt within our lifetimes, but if it does its geographic impact would vary depending on the size of the eruption, wind direction, and type of hazards produced.
Learn More