Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60Active mining (2012–2014) Bentonite Crushed stone Gypsum Uranium Sand and gravel Sulfur Trona Zeolites Other mining 41 Trona Wyoming contains the world’s largest trona deposits, an estimated resource of 127 billion tons. Also known as natural soda ash, trona is used to make glass, soaps, and detergents. The picture to the right shows trona being mined underground. Trona can be extracted from depths of more than 1,500 feet. Wyoming is the nation’s leading producer of uranium and has the largest uranium reserves in the country. Uranium has a history of boom and bust cycles in Wyoming with the peak of mining activity occurring in the 1970s. In the past copper, gold, and iron were also mined in Wyoming. More than 90 million tons of iron ore were produced near Atlantic City between 1962 and 1983. Bentonite Bentonite is a clay-like material capable of absorbing ten times its own weight in water. One of its major uses is in the production of cat litter, but it also has important uses as a lubricant in drilling processes and for creating linings that protect groundwater below landfills. General locations of host rocks that may contain potentially minable materials Trona Gypsum Uranium Bentonite Diamonds (reported occurrence) Jade (reported occurrence) Data Go Interactive