English: The rock masses in the background are basaltic sea stacks, erosionally separated from the adjacent headland. The rocks are part of the Upper Eocene Yachats Basalt, which is about 36 to 37 million years old.
Locality: sandy-gravelly beach & rocky shoreline at Heceta Head, coastal Oregon, USA (vicinity of 44° 08' 02.18" North latitude, 124° 07' 24.58" West longitude)
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