The Craters of the Moon lava field spreads across 618 square miles and is the largest young basaltic lava field in the lower 48 states. Sixty distinct lava flows form the Craters of the Moon lava field ranging in age from 15,000 to just 2,000 years old. This lava field contains more than 25 volcanic cones including several outstanding examples of spatter cones. The Kings Bowl and Wapi lava fields, both about 2,200 years old, are located on the southern edge of the Snake River Plain.
