From the parking lot, where a Northwest Forest Pass is required, the trail follows an old road bordered by towering salmonberry bushes and deciduous trees. The berries ripen in early to mid June and the best ones are found high above your head.
https://github.com/davepinch/pinchy.cc/blob/master/content/sites/wta.org/go-hiking/hikes/lake-serene.md
Polygons appear in rock formations, most commonly as the flat facets of crystals, where the angles between the sides depend on the type of mineral from which the crystal is made.