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FIG. 9.-SECTION OF CRATER LAKE AND ITS RIM, WITH THE PROBABLE OUTLINE OF MOUNT MAZAMA. STRUCTURAL DETAILS GENERALIZED.
Vertical and horizontal scales the same.
FIG. 10. THE PALISADES, ROUND TOP, AND WINEGLASS SLIDE ON NORTHEAST BORDER OF CRATER LAKE.
From a photograph by J. S. Diller.
FIG. 11.-CRATER LAKE. THE DEVILS BACKBONE AND LLAO ROCK SEEN BEYOND WIZARD ISLAND. THE SHARP POINT OF MOUNT THIELSON
APPEARS IN THE DISTANCE.