Puget Sound Beaches ... not really just gravel, but sand, broken shell, and occasionally a boulder the size of a large truck.
Monday, July 07, 2014
More photos of the marine terrace. More steeply dipping sedimentary rocks planed flat on top by waves 80,000 years ago and then subsequently covered by a thin layer of beach and dune deposits. Then gradually lifted 80-100' by plate tectonics and, much more recently, carved into seacliffs and sea stacks.