Landform
A lightning-rod horn over Diamond Lake — a gutted Cascade volcano worn to a spire, not Crater Lake’s rim.
Field note
From Diamond Lake the summit is a single tooth. This plate is Mount Thielsen in the Umpqua, not Crater Lake and not Diamond Peak farther north.
Mount Thielsen is the lightning-rod horn over Diamond Lake — a gutted volcano worn to a spire. This plate is the Umpqua wilderness, not Crater Lake and not Diamond Peak.
