Golden Minerals is a junior silver producer with a strong growth profile, listed on both the NYSE Amex and TSX.
See here:
http://sprottglobal.com/thoughts/articles/rick-rule-$2-$3b-gold-deposits-that-can-be-bought-now-for-$15mm%E2%80%94will-command-a-$2-$3b-price-tag-again/