Bureau of Land Management, Utah.
These sere hills contain some of the most productive and diverse rockhound areas in the west. Visitors to Topaz mountain can collect a variety of topaz and crystals, while nearby are trilobite beds (at Antelope Springs), and geode beds near Dugway. There are no facilities in any of these areas, but dispersed camping is permitted throughout.
55 miles west of Delta via US Hwy 6 and paved county road.