Smith, C.B., M.E. McCallum, H.G. Coopersmith, and D.H. Eggler. 1977. “Petrography, Petrology and Chemistry of Kimberlite from the Colorado-Wyoming State Line and Iron Mountain, Wyoming Districts”. International Kimberlite Conference: Extended Abstracts 2 (1):307-9. https://doi.org/10.29173/ikc1031.