South Sister Volcano - John Seach
Oregon, USA

44.10 N, 121.77 W
summit elevation 3157 m
complex volcano

As of March 2002, the steady, slow uplift of an area of the W flank/base of
South Sister continues, at the rate of one inch/year maximum (~2.5 cm/year).

Eruptions of South Sister Volcano
1853?, 2000 years ago.
 

South Sister Volcano
www.volcanolive.com
Copyright John Seach