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The Comet and Gray Eagle Mines and Adjacent Area, Jefferson County, Montana

Description: Abstract: Anomalous radioactivity and uranium minerals have been found on the dumps of the Comet, Gray Eagle, and Silver Hill mines situated along the Comet-Gray Eagle shear zone. The shear zone is from 50 to 200 feet in width and has been traced 5 1/2 miles. The Gray Eagle mine is currently being reopened but no underground work, with the exception of a few shallow shafts and adits, has been done between the Gray Eagle and Comet mines. Because of the high U3 08 content of the samples from the … more
Date: March 1953
Creator: Becraft, George Earle
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Investigation of Whiteware Clay Deposit, Fergus County, Montana

Description: Report issued by the Bureau of Mines over studies conducted on the Whiteware clay deposit. As stated in the introduction, "this report presents the factual data obtained by the investigation, which also includes data on trenching and drilling, and the results of some refractory tests and chemical analyses of representative samples of the clay later taken from some of the best trench exposures and from adit dumps" (p. 1-2). This report includes tables, maps, and illustrations.
Date: March 1949
Creator: Roby, R. N. & Robertson, Almon F.
open access

Reduction Mills in Montana in 1925

Description: List of reduction mills in Montana, compiled in the course of investigations of mineral resources of Montana. It includes information about each loaction including: the process, character of ore, when the mill was operated, and custom work; equipment and power used; and capacity in tons.
Date: March 1927
Creator: Gerry, C. N.
open access

Safety Cars of the United States Bureau of Mines

Description: Report issued by the U.S. Bureau of Mines discussing the mine stations and safety cars used to reach miners in distress. As stated in the report, "the purpose, equipment, personnel, and construction of its safety cars" is presented. This report includes an illustration, and a map.
Date: March 1931
Creator: Forbes, J. J. & Ankeny, M. J.
open access

Tectonic Map of Eastern Montana Showing the Distribution of Uranium Deposits

Description: From introduction: A tectonic map for the northern part of the Cordilleran Foreland was compiled to aid in establishing the geologic setting of uranium deposits within the region, and to determine what relationships, if any, exist between the distribution of uranium deposits and localities, and the regional tectonic pattern (Osterwald, 1955). The relationships might suggest new areas favorable for the discovery of uranium deposits in the Cordilleran Foreland as well as in other areas with simil… more
Date: March 1956
Creator: Osterwald, Frank W. & Dean, Basil G.
open access

Uranium Hydrogeochemical and Stream Sediment Reconnaissance Data Release for the Montana Portion of the Hamilton, Montana/Idaho, NTMS Quadrangle

Description: from Summary: This report describes work done in Hamilton, Montanan/Idaho, National Topographic Map Series (NTMS) quadrangle (1:250 000 scale) by the Los Alamos Scientific Laboratory (LASL) as part of the nationwide Hydrogeochemical and Stream Sediment Reconnaissance (HSSR).
Date: March 1978
Creator: Aamodt, Paul L.
Location: None
open access

Uranium Hydrogeochemical and Stream Sediment Reconnaissance of the Dillon NTMS Quadrangle, Montana/Idaho, Including Concentrations of Forty-Three Additional Elements

Description: This report provides uranium and other elemental data resulting from the Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) of the Dillon quadrangle, Montana/Idaho.
Date: March 1979
Creator: Broxton, David Edward; Ashley, William H.; Duchane, David. L.; Minor, Michael M.; Gallimore, David L.; Hansel, James M. et al.
Location: None
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