sea ridge. This grazing was destroying the ridge grass and plants that prevented sand from blowing onto the nearby farms. As incorporated originally, "Clatsop Plains" extended from the Skipanon River to Seaside. An actual town eventually came into being about a mile north of Seaside, and was later absorbed into Gearhart. However, its early proximity to Seaside is probably why Seaside itself was sometimes referred to Clatsop Plains. The coastal grassy areas of Clatsop Plains was home to the endangered Oregon silverspot butterfly. Re-establishment efforts are continuing. (Speyeria zerene hippolyta). A stretch of , the Oregon Coast Highway, runs through most of the length of Clatsop Plains. Gallery References External links Camp Rilea Wetlands of Oregon Oregon Coast Dunes of the United States Landforms of Clatsop County, Oregon