00845cam a22002411 4500 gs 50000119 DLC 20260227111356.0 790801s1950 mtu 000 0 eng c gs 50000119 (OCoLC)5230482 U.S. Geol. Survey TxEU DLC premarc TN948.C8 H4 Heinrich, E. William (Eberhardt William), 1918- The Camp Creek corundum deposit near Dillon, Beaverhead County, Montana. Butte, Montana School of Mines, 1950. iii, 20 p. plate, maps. 28 cm. Montana. Bureau of Mines and Geology. Miscellaneous contributions no. 11 "References": p. 19-20. Corundum. Montana Bureau of Mines and Geology. Miscellaneous contributions ; no. 11. 28465 28465