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Global Volcanism Program | Image GVP-03172

Devil's Backbone is a segmented dike that rises nearly 400 m from the shore of Crater Lake in the western rim of the caldera. The andesite dike was a feeder for a vent that was near Mount Hillman but has since been removed by glacial erosion.   Photo by Lee Siebert, 1981 (Smithsonian Institution)

Devil's Backbone is a segmented dike that rises nearly 400 m from the shore of Crater Lake in the western rim of the caldera. The andesite dike was a feeder for a vent that was near Mount Hillman but has since been removed by glacial erosion.

Photo by Lee Siebert, 1981 (Smithsonian Institution)

Keywords: dike | caldera | outcrop | exposure | geology | stratigraphy


Crater Lake