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Sand Mountain Volcano - John Seach
Oregon, USA
44.38 N, 121.93 W
summit elevation 1664 m
Cinder cones
Sand Mountain volcanic field is located NW of Mt Washington, and consists of 23 cinder cones. The most recent eruptions occurred at Lost Lake cinder cone.
Sand Mountain Volcano Eruptions
70 AD ± 150, 800 BC ±300, 900 BC ± 100, 1740 BC ± 300, 2290 BC ± 300