Friday, July 11, 2014
In contrast to our leisurely drive down the coast, our return to Seattle was much faster. We took two days, with the night spent in Crescent City. My beach time was limited to some evening glimpses of the Humboldt Lagoons (reported on during the trip down) and an early morning walk on the beach in front of the hotel.
What caught my eye was the abrupt lower edge of the gravel beach. This isn't that unusual, but sometimes it is more distinct than others. This is just a snapshot in time - I don't know what this beach looks like at other times - but I generally associate this morphology with beaches where the amount of sediment is limited and the combination of wave conditions and sediment size conspires to push material exclusively onshore. I'm sure there are other factors, too.
Crescent City is probably best known in coastal circles for its attractiveness to tsunamis, which tend to stack up and strike with more vengeance here than elsewhere on the west coast. I guess it's mainly about the shape of the coastline and more importantly, the shape of the bottom offshore.