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Vinony
Category

Maars of Oregon

page 1
Fort Rock
landform in Oregon, United States
Diamond Craters
mountain in United States of America
Big Hole
mountain
Hole-in-the-Ground
Hole-in-the-Ground is a large maar (volcanic explosion crater) in the Fort Rock–Christmas Lake Valley basin of Lake County, central Oregon, northeast of Crater Lake, near Oregon Route 31.