Diamond Peak Wilderness straddles the Cascade Mountains. Diamond Peak was formed as the entire land mass of the Cascades was undergoing volcanic activity and uplift. Great glaciers carved the large volcanic peak and when they receded, the bulk of the mountain remained, with snowfields near the summit and dozens of small lakes surrounding the peak. Diamond Peak Wilderness area covers 52,611 total acres. Lakes from one to 28 acres in size dot the landscape. Approximately 14 miles of the Pacific…
Diamond Peak Wilderness: Willamette is primarily first-come, first-served. Use the availability view to gauge how busy it is before you go.
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