POTD 4-12-16 lava flow Garfield County

Pinnacles eroded from Tertiary-age lava flow breccia along State Route 20, Garfield County.

Pinnacles eroded from Tertiary-age lava flow breccia along State Route 20, Garfield County.
State Route 20, Garfield County, Utah Photographer: Bob Biek; © 2015

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