Sun Notch - Prominent Geological Features of Crater Lake National Park
The canyons of Sand and Sun
creeks are among the most striking glacial phenomena of Mount Mazama. The
notches they make in the rim are prominent features. The canyons are clearly of
the glacial form. Their walls are glaciated and their floors strewn with
morainal deposits ... In the case of Sun
Creek the conditions are somewhat different. For 2 miles from the crest the
grade is gentle and the broad even floor is on glacial debris; then the creek
descends abruptly, .... [Glaciation
of Mount Mazama, The Geology and Petrography of Crater Lake National Park (1902)]
Sun Notch at center and Applegate Peak at right, Crater Lake National Park, photo by
Robert Mutch
