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Global Volcanism Program | Image GVP-02718

Black Tusk is a glacially eroded lava dome from the earliest stage of activity of the Garibaldi Lake volcanic field about 1 million years ago. The light-colored ridge to the right is a glacial moraine. Photo by Lee Siebert, 1983 (Smithsonian Institution).

Black Tusk is a glacially eroded lava dome from the earliest stage of activity of the Garibaldi Lake volcanic field about 1 million years ago. The light-colored ridge to the right is a glacial moraine.

Photo by Lee Siebert, 1983 (Smithsonian Institution).

Keywords: lava dome | erosion | outcrop | geology


Garibaldi Lake