About

About Cold River Mining About Cold River Mining Corporation Cold River Mining Builds Gemstone Mining Sluices for attractions to increase guest enjoyment and business profits. The only company using professionally packaged and heat sealed bags to make sure your guests get exactly what they expect. White Label available. Cold River Mining manufactures and produces Gemstone Mining Sluices and Rough in the USA for businesses across the country. The professionally packaged and heat sealed bags sell better than the competition and take less to remove from your sluice.