Redcloud Cliff - Prominent Geological Features of Crater Lake National Park
Located near the center of the eastern Crater Lake caldera rim, Redcloud Cliff takes its name from the reddish-yellow tuff or tuffaceous dacite that underlies it's principle flow.
[Cloud Cap Dacite Flow, The Geology and
Petrography of Crater Lake National Park (1902)]
Redcloud Cliff is a dacite flow overlain by pumice and glacial till and underlain by an older dacite flow. Beneath the older dacite flow lie thick deposits of pumice and welded
tuff, and then a succession of andesite flows....[Inter-andesitic
Dacite Pumice on the Caldera Walls, The Geology of Crater Lake National Park, Oregon (1942) by Howell Williams]
Redcloud Cliff Cliff dominates this view of the east caldera wall, Crater Lake National Park, Scientific Investigations Map 2832, Sheet 4 of 4, Geologic Map of Mount Mazama and Crater Lake Caldera, Oregon (2008), by Charles R. Bacon