Geology
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The Deschutes National Forest is a geologically young and complex
volcanic region on the east flank of the Cascade Range and on the
large shield shaped volcano, Newberry. The great variety of volcanic
and glacial landforms found on the Deschutes National Forest is
probably unique in the United States. Large strato or composite
volcanoes, many deeply eroded by glaciers, line the crest of the
Cascades and hundreds of cinder cones dot the landscape.
The Ochoco National Forest is a much older volcanic region that
has been uplifted and eroded.
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