The Tats Creek mineralization is reported to occur in green, silicified granite near the top of a hill. The occurrence is located in an area mapped as Jurassic to Cretaceous St. Elias Intrusions north of Tats Creek. Assays of 0.34 to 0.69 grams per tonne gold, 10.29 to 20.57 grams per tonne silver, and 3.35 to 4.65 per cent copper are reported.