wavy molten lava patterns preserved in a spatter cone at the fleener chimneys in the lava beds national monument in california,

lava spatter cone wavy detail formation volcano cracks fleener chimneys beds national monument magma volcanic pattern texture flow flows cracked rock fissure cones california molten eruption crust earth planet environment pockmarked chimney historic prehistoric devils homestead park travel tour tourism natural history nature outside outdoors modoc united states usa america american