Red Mountain Mining Limited operates as a critical minerals and gold exploration and development company in the United States and Australia. The company's projects include the Utah Antimony project in the Antimony Mining District; the Yellow Pine Antimony and Silver Dollar Antimony projects located in Idaho; and Lithic lithium and Mustang lithium projects in Nevada. Its projects also comprise Armidale Antimony-Gold project located in New South Wales, Australia; Kiabye gold project in Western Australia; and Fry Lake gold project in Canada. The company was incorporated in 2006 and is based in Subiaco, Australia.