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Four Craters Lava Field

 Four Craters Lava Field

Summary
Quick Facts

The Four Craters lava field, 19 km2 in area, is the southeasternmost of a group of three basaltic lava fields southeast of Newberry volcano in the High Lava Plains of central Oregon. Lava of the Four Craters is mostly rubbly to blocky ‘a‘ā and minor spiny pāhoehoe; smooth-surfaced pāhoehoe is lacking. The lava was fed from four pyroclastic cones constructed along a roughly 4-km-long north-northwest trend. The highest cone, at the north, has a well-preserved crater rim. The other cones (from north to south) are breached to the west, southwest, and south, respectively. A surface exposure age from the Four Craters lava indicates emplacement about 13 ka. The Four Craters lava field and Lava Mountain lava field, 6 km (nearly 4 mi) north-northwest, are similar in composition and paleomagnetic directions. They likely were emplaced during the same eruptive event that propagated along a north-northwest-striking fissure. The Devils Garden lava field to the west, which differs in its chemical composition and paleomagnetic directions, is from an eruption separate in time.
Location: Oregon, Lake County
Latitude: 43.361° N
Longitude: 120.669° W
Elevation: 1,501 (m) 4,925 (f)
Volcano type: Volcanic field
Composition: basalt
Most recent eruption: 13,000 years ago
Nearby towns: La Pine, Gilchrist, Sunriver, Wagontire
Threat Potential: Low/Very Low *