Solitario Exploration & Royalty Corp., a development stage company, engages in the acquisition and exploration of precious and base metal properties in Peru, Brazil, and Mexico. It primarily explores for gold, silver, platinum, palladium, copper, lead, and zinc metals. The company primarily focuses on developing the Mt. Hamilton gold project consisting of 290 unpatented mining claims, 9 patented mining claims, and 241 acres of fee land located in White Pine County, Nevada. As of December 31, 2012, it also had nine exploration properties in Peru, Mexico, and Brazil; Yanacocha royalty property in Peru; and Mercurio royalty property in Brazil. The company was formerly known as Solitario Resources Corporation and changed its name to Solitario Exploration & Royalty Corp. in June 2008. Solitario Exploration & Royalty Corp. was founded in 1984 and is based in Wheat Ridge, Colorado.