Thunder Mountain Gold, Inc., a mineral exploration stage company, explores for mining properties in Nevada and Idaho. It primarily explores for gold, silver, base metals, and other commodities. The company holds interests in the South Mountain property that includes 17 patented mining claims covering an area of approximately 326 acres; 21 unpatented mining lode claims covering an area of approximately 290 acres; leased private land covering an area of approximately 489 acres; and private land not contiguous with the mining claims covering an area of 360 acres located in Owyhee County, Idaho. It also holds interests in the Trout Creek project, which comprises 26 unpatented mining claims covering an area of approximately 520 acres situated in Lander County, Nevada. Thunder Mountain Gold, Inc. was incorporated in 1935 and is based in Boise, Idaho.