MOUNT ST. HELENS, Washington

Front:
MOUNT ST. HELENS ERUPTS

Back:
MOUNT ST. HELENS, Washington After a dormant period of 123 years, Mount St. Helens began its first series of eruptions on May 18, 1980. The major eruption with an esti- mated force of a 50 Megaton TNT blast was comparable to the largest nuclear weapon ever tested. C33447-Photo: ©1980 Bob Cronk CANYON PUBLISHING CO., Canyonville, OR 97417 Mike Roberts Color Productions Emeryville, CA 94608 U.S.A.