Just moved to the area and am curious how to begin rock hunting, as I hear Kittitas County in general and northwest Ellensburg in particular have a lot of neat rocks, agates, chalcedony, crystals, geodes, petrified wood, and thunder eggs. To me a rock still looks like a rock, so I'd love to find some local folk to go out on a trip or two with who could show me what to look for! Any advice? Tips?