U. S. GEOLOGICAL SURVEY 



BULLETIN 014 PLATE XXIIl 



NEW CRATER OF LASSEN PEAK, CAL., AFTER 25 ERUPTIONS WITHIN THE OLD CRATER, AUGUST 17, 1914. 



The banded material on the farther rim of the new crater has been thrown out by the recent eruptions and covered a layer of snow. The dark matorlal In the foreground Is a 



snowbank covered by 3 inches of wet dust. Some of the falling stones sank into the snow, Photograph copyrighted by Thompson, Susanville, Cal. 



