Oregon has two subglacial volcanoes which form unusual landforms known as tuyas. Rising several hundred feet above the …
Oregon’s 2 Subglacial Volcanoes; Hayrick Butte & Hogg Rock
Oregon’s 2 Subglacial Volcanoes; Hayrick Butte & Hogg Rock

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Oregon has two subglacial volcanoes which form unusual landforms known as tuyas. Rising several hundred feet above the …
Oregon’s 2 Subglacial Volcanoes; Hayrick Butte & Hogg Rock