Sierra Madre Gold and Silver Ltd., a mineral exploration company, engages in the acquisition, exploration, and development of natural resource properties in Canada and Mexico. Its minerals portfolio includes silver, gold, lead, and zinc. It holds 100% interest in the La Guitarra Project located at 130km SW of Mexico City; and Tepic Project located in Nayarit, Mexico; with covering total an area of 39,714 hectares. The company is based in Vancouver, Canada.