https://github.com/davepinch/pinchy.cc/blob/master/content/topics/places/rest-areas/post-oak-rest-area/post-oak-rest-area-northbound.md
Swamp Creek (Washington) (Wikipedia) Swamp Creek is a tributary of the Sammamish River in Snohomish and King counties, in the U.S. state of Washington. It is also known as dxʷɬ(ə)q̓ab in Lushootseed, meaning “a wide place”.
Butterfly at Post Oak Rest Area