Tag Archive for: lava flow breccia

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

POTD 4-12-16 lava flow Garfield County

State Route 20, Garfield County, Utah
Photographer: Bob Biek; © 2015

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