Here are 10 of the best rockhounding sites for rocks and minerals in Wyoming: Fremont County - Agate, Chalcedony, Jasper, Jade Split Rock - Ruby, 'Sweetwater' Agate Sweetwater County - Agate, Quartz crystals, Chert Rock Springs - Silicified wood, Agate, Jasper Box Elder Canyon - Geodes, quartz crystals Wamsutter Agate Beds - Turritella agates Public access with nice walk in. What a great reason to go rockhounding. Palmer Canyon is the place to be if you want to find sapphire. Obsidian is abundant in the park, with the most famous location to find these beauties being the Obsidian Cliff. Knightia Fish fossils are primarily uncovered in the Green River Formation of Wyoming. Fremont County, washes and draws in extreme SE corner, Wind River and tributaries, in gravels near Riverton, Warm Springs, area draws and hills over a large area, Rattlesnake Mountain, area N of Shoshone River, Sweetwater County, all area outcrops of Green River formation, Rock Springs, washes and draws over large area to E, Blacks Fork Creek, NE corner of Uinta County. Moonshine Arch near Vernal, UT along with a dinosaur track site at Red Fleet: 10.) google_color_text="FFFFFF"; Their annual Mineral and Gem Show is a massive hit with members and anyone interested in the field of topics. Proceed up canyon dirt road (12) until you reach the top plateau and it is flat. A number of the best locations are on private land, and while Ive gotten access from the owners, I cant list them here. Concretion and geodes are common in many of the sedimentary rocks in the state, but a good way of finding geodes in Wyoming is to search for the conglomerate in limestone or sandstone. . This book is a 6" x 9" paperback with 246 pages, descriptions, maps and photos. Check out the table down below to see where these specimens of sedimentary rocks are found in Wyoming. Guide to Prospecting and Rock Hunting in Wyoming I may receive a commission for purchases made through these links at no additional cost to you. This site contains affiliate links to products. You can find these in the Mississippian limestone beds a few miles northwest of Guernsey, Wyoming. The clamber down through the woods and thicket is well worth the spectacular site of the mountainous, artesian well. That said, lab is pretty much a plagioclase feldspar. In general, the best places to find crystals and gemstones in Wyoming are washes and draws across the western half of the state, particularly near Kemmerer, Atlantic City, and Rock Springs. Beryl, columbite-tantalite, copper minerals, feldspar minerals, lithium minerals, magnetite, manganese minerals, and mica minerals may be found in Copper Mountain in Fremont County. Find out more in the article below:Difference Between Real & Fake Geodes: Focus on These Signs. Cryptocrystalline quartz varieties like agate, jasper, chalcedony, and petrified wood are prevalent over much of the region. You can also find it in the Wiggins formation of the Oligocene age near the head of Frontier Creek in the Absaroka Mountains. The Sublette County Rock Hounds Club is relatively new to the scene of formal rockhound organizations. //-->,