Geo 365: July 5, Day 186: Jointed Sandstone

A well-cemented, quite competent sandstone bed is preferentially weathering along a set of joints, forming an abstract mosaic at Beverly Beach State Park, Lincoln County, Oregon. The rock here is Miocene Astoria Formation. Right click the photo for various size options here. Below is a photo of Chris Rowan (@Allochtonous) for scale.

Photo stitched in Hugin, otherwise unmodified. July 3, 2013. FlashEarth location.(Astonishingly, you can resolve the pits where blocks have been pounded loose and out by waves in the FE image!)