Abstract
INTRODUCTION Crater Lake, situated close to the crest of the Cascades of southern Oregon, approximately in latitude 43° N, longitude 122° W, occupies an extensive crater, formed by the destruction of a mountain, which has been named Mount Mazama. The lake lies at an altitude of 6161 feet, approximately 16 feet lower than that recorded by early surveys, and is surrounded by a nearly circular rim, varying from 500 to 2,000 feet in height (Pl. 1, fig. 1). It has a shoreline of approximately 21 miles and is 6½ miles in diameter from west to east and about 4½ miles from north to south. The materials in the crater walls and the inclination of the back slopes indicate that, prior to the formation of the lake, there was a composite cone, 12,000 to 15,000 feet high, with a circumference comparable to that of Mount Shasta (Fig. 1). The problem of . . .
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
