National Geographic : 1937 Mar
CRATER LAKE AND YOSEMITE THROUGH THE AGES A MIGHTY VOLCANO ONCE SEETHED WITH FIRE WHERE MYSTERIOUS CRATER LAKE GLISTENS TODAY Many thousands of years ago molten rock from deep within the earth poured forth to build in the Cascade Range of southern Oregon lusty Mount Mazama, which the artist has re-created from geologic records. Its frequent explosions buried the surrounding landscape beneath pumice and ash, to be turned by the alchemy of millenniums into soil of remarkable fertility. hic society GLACIERS WERE BORN ON THE SLOPES OF TIHE VOLCANO Continued outpourings of lava raised the mountain to at least 10,000 feet. Snows fell, massive layers of ice formed during periods when the subterranean fires were banked. But the record of these glacial caps is now buried under a thousand feet of rock, later poured in molten state from the crater.