VIEWED FROM THE RIM

EVERAL days may profitably be spent upon the rim of the lake which one may travel afoot or on horseback. The endless variety of lava formations and of color variation may be here studied to the best advantage.

The temperature of the water has been the subject of much investigation. The average observations of years show that, whatever may be the surface variations, the temperature of the water below a depth of three hundred feet continues approximately 39 degrees the year around. This disposes of the theory that the depths of the lake are affected by volcanic heat.

"Apart from its attractive scenic features," writes J. S. Diller of the United States Geological Survey, "Crater Lake affords one of the most interesting and instructive fields for the study of volcanic geology to be found anywhere in the world. Considered in all its aspects, it ranks with the Grand Canyon of the Colorado, the Yosemite Valley, and the Falls of Niagara, but with an individuality that is superlative."

LOOKING DOWN INTO THE CRATER OF WIZARD ISLAND Photograph by H. T. Cowling

SAND CREEK, SHOWING PINNACLES RESULTING FROM EROSION Photograph by Fred H. Kiser, Portland, Oregon

LLAO ROCK, NAMED AFTER THE GOD WHOM THE INDIANS BELIEVE LIVED IN THE LAKE'S MIGHTY DEPTHS Photography by H. T. Cowling

CLOSER VIEW OF LLAO ROCK, WHICH, WITH THE PICTURE OPPOSITE, STRONGLY SUGGESTS CRATER LAKE'S ATMOSPHERE OF MYSTERY Photography by H. T. Cowling