Phil Brogan Viewpoint
The High Cascade peaks to the west are all volcanoes that have erupted
during the past million years. Bachelor Butte, about 10,000 years old,
is the youngest of these. They all rest on a high plateau made up of hundreds
of overlapping shield volcanoes. Ice age glaciers have cut deeply into
the older volcanoes such as Broken Top and North Sister. Younger volcanoes
such as South Sister escaped with fewer scars. Today, remnants of the
old glaciers continue to grind away at these peaks. |