The Mockingbird Mine, Mariposa County, California
Gressman, T. (2007a) New discovery of superb crystallized gold at the Mockingbird mine, Mariposa County, California. Unpublished Collectors Edge Minerals, Inc. press release, 1p. Gressman, T. (2007b) Exceptionnelle d'or natif a la mine de Mockingbird Comte de Mariposa, California. Le Règne Minéral: 74, 13-15.