| Reference | {Deposit:: Harber, C.M., and Tesch, W.J., Jr., 1959, Reconnaissance of iron occurrences in Colorado, U.S. Bureau of Mines Information circular 7918, 82 p.}{Names:: Ellis, C.E., Hannigan, B.J., and Thompson, J.R., 1983, Mineral investigation of the Sangre de Cristo Wilderness Study Area, Alamosa, Custer, Fremont, Huerfano, and Saguache Counties, Colorado, U.S. Bureau of Mines MLA 65-83, 190 p.} |