Alto Metals Limited is principally engaged in the exploration for gold... Alto Metals Limited is principally engaged in the exploration for gold deposits. The company holds full ownership of the Sandstone gold project, an extensive tenement spanning approximately 900 square kilometers, located within Western Australia's East Murchison Mineral field. Established in 2012, the firm was formerly known as Enterprise Uranium Limited until it adopted its current name, Alto Metals Limited, in May 2016. Its headquarters are situated in West Perth, Australia.