Golden Horse Minerals Ltd., a gold exploration company, engages in the acquisition, exploration, and development of mineral projects in Western Australia. It primarily explores for gold, nickel, and lithium exploration. The company's principal project is the Southern Cross North project covering an area of approximately 930 square kilometers located in Perth, Western Australia. The company was formerly known as Altan Rio Minerals Limited and changed its name to Golden Horse Minerals Limited in July 2023. Golden Horse Minerals Limited is headquartered in Vancouver, Canada.