Above Scott Creek 11. Aerial view of Crater Lake caldera looking west-northwest from area above Scott Creek. Mount Scott (8,928 ft elev) in right foreground, composed entirely of dacite lava and pyroclastic rubble (unit ds; ~420 ka), has a mantle of climactic pumice (unit cp); long buff-colored scar descending to left apparently was formed by snow avalanche(s). Pyroclastic flows of ring-vent phase of climactic eruption left proximal lithic-rich ignimbrite (unit cb) in saddle on summit ridge of Mount Scott. From left to right, high points on caldera rim (8,013-8,151 ft elev) are Dutton Cliff (above Kerr Notch), Applegate and Garfield Peaks, The Watchman (behind Wizard Island), Hillman Peak, and Llao Rock. Photograph by Charles R. Bacon. |