Preliminary Report on Exploration for Diamondiferous Kimberlites, Colorado-Wyoming (1979)

Hausel, W.D., McCallum, M.E., and Woodzick, T.L., 1979, Preliminary report on exploration for diamondiferous kimberlites, Colorado–Wyoming: Geological Survey of Wyoming [Wyoming State Geological Survey] Reprint 36, p. 109–122. (Reprinted from Mining Yearbook, 1979: Colorado Mining Association.)