- Keystone Mining District - Douglas Creek Mining District
| R.R. Loucks, M.E. McCallum (1980) Platinum-group minerals in the New Rambler copper-nickel deposit, Wyoming: A preliminary report. ft Sulphosalts, Platinum Minerals and Ore Microscopy, 200-218. Proc. XI IMA Meet., Novosibirsk.(Am Min 74:1217) |