- Elk Mountain Mining District
| [var. Uranpyrochlore (of Hogarth 1977)] Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM. Jahns, R. H. (1946) Mica Deposits of the Petaca District, Rio Arriba County, New Mexico. Bulletin 25. Mineral Resources Survey of New Mexico |