High Cascades Volcanoes - John Seach
Clear Lake to Olallie Butte
Oregon, USA

45.00 N, 121.75 W
summit elevation 2200 m
Shield volcanoes and cinder cones

Volcanic Features of High Cascades Volcanoes
Clear Lake Butte, Summit Butte, Mount Wilson, Beaver Butte, Wests Butte,
North Wilson, North Pinhead, South Pinhead, West Pinhead, Sisi Butte, Olallie Butte.

Eruptions of High Cascades Volcanoes
70,000 years ago (Olallie Butte)
 

High Cascades Volcanoes
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