- Greenschists are metamorphic rocks that formed under the lowest temperatures and pressures usually produced by regional metamorphism, typically 300–450 °C (570–840 °F) and 2–10 kilobars (29,000–145,000 psi). Greenschists commonly have an abundance of green minerals such as chlorite, serpentine, and epidote, and platy minerals such as muscovite and platy serpentine. The platiness gives the rock schistosity (a tendency to split into layers). Other common minerals include quartz, orthoclase, talc, carbonate minerals and amphibole (actinolite).
- Johns River Wildlife Area (wdfw.wa.gov)
The Johns River Wildlife Area is located in Grays Harbor County and Pacific County, and covers approximately 11,200 acres of land. The wildlife area’s units are found mostly along Grays Harbor and Willapa Bay near the coast of the Pacific Ocean on the Olympic Peninsula.