Rio Grande Resources Ltd. is a mineral exploration company focused on gold and silver properties in New Mexico, USA. The company holds a 100% interest in the Winston project group, comprising approximately 3,000 acres of drill-ready land in the Black Range of Sierra County that includes the historic Ivanhoe & Emporia mines on two patented lode claims; the Little Granite gold mine on four unpatented lode claims; and 141 additional unpatented Bureau of Land Management mining claims covering the Chloride Mining District. These past-producing sites feature low-sulfidation epithermal mineralization along the Paymaster Fault and Rio Grande Rift structures, with recent sampling returning high-grade results such as 66.5 grams per tonne gold and 4,610 grams per tonne silver at Little Granite, and 46.1 grams per tonne gold and 517 grams per tonne silver at Emporia. Rio Grande Resources targets district-scale discoveries in these epithermal systems for precious metals investors. Founded in July 2024 and headquartered in Vancouver, British Columbia, Canada, the company operates solely in North America following its spin-out from Foremost Clean Energy Ltd. via a statutory plan of arrangement completed on January 31, 2025, which transferred the Winston property and distributed shares to Foremost shareholders. Recent developments include positive assay results from a June 2025 sampling campaign at Winston; a September 2025 partnership with LFG Equities Corp. for investor awareness and digital marketing in US and Canadian markets; an August 2025 expansion of its corporate communications team and engagement with a market awareness agency; a May 2025 application to uplist to the OTCQB Venture Market; and approval to commence drilling activities.