Mining Program: Bureau of Mines Oil-Shale Project, Rifle, Colorado (open access)

Mining Program: Bureau of Mines Oil-Shale Project, Rifle, Colorado

Report issued by the Bureau of Mines on the development of efficient mining methods for producing oil shale. Characteristics of the oil shale deposits of the Green River are presented. The results of core drilling and sampling in this area are also listed. This report includes tables, illustrations, maps, and photographs.
Date: April 1948
Creator: Gardner, E. D.
System: The UNT Digital Library
Investigation of Manganese Areas, Hammond Plantation and Hodgdon Townships, Southern District, Aroostook County, Maine (open access)

Investigation of Manganese Areas, Hammond Plantation and Hodgdon Townships, Southern District, Aroostook County, Maine

Report issued by the Bureau of Mines over studies conducted on manganese deposits of Aroostook County, Maine. Descriptions of the deposits, and the results of the study are presented. This report includes tables, maps, illustrations, and photographs.
Date: April 1958
Creator: Eilertsen, Nils A.
System: The UNT Digital Library