|Best months for climbing:||Jul, Aug, Sep, Oct|
|Nearest major airport:||Eugene, OR|
|Convenient Center:||Oakridge, OR|
Thanks to Matt Naylor for adding this peak.
Diamond Peak is an extinct/dormant shield volcano roughly 50 miles south of the Three Sisters in Oregon's central Cascades. The trek to the summit is long but doesn't require much technical skill in the late summer/early fall.
Thanks to Matt Naylor for this description.