Add to ORKGReport issued by the U.S. Bureau of Mines discussing mining costs and methods of fluorspar mines in Hardin County, Illinois. As stated in the summary, "it describes the exploration, development, and mining practices, giving costs of each. Transportation, equipment, power, labor, and other influencing factors also are discussed" (p. 1). This report includes tables, maps, illustrations, and photographs
The fluorspar-zinc orebody at Minerva No. 1 mine near Cave in Rock, in Hardin County, Illinois, woul...
At head of title: State Geological Survey, Department of Mining Engineering, University of Illinois,...
This paper describing the inclined cut-and-fill, and the semishrinkage methods of mining at the Camp...
Report issued by the U.S. Bureau of Mines discussing tungsten mining operations conducted in Lincoln...
Report issued by the U.S. Bureau of Mines discussing the mining costs and methods of the Regal asbes...
Report issued by the U.S. Bureau of Mines discussing mining costs and methods of the Black Rock Tung...
This report compiles into a cohesive document details of the individual mines within the Illinois po...
Report issued by the U.S. Bureau of Mines discussing copper mining methods and costs in Gila County,...
Report issued by the U.S. Bureau of Mines discussing the operation and production of the Ward Sand a...
The American fluor spar mines of economic importance are located in the Southern part of Illinois an...
From abstract: The fluorspar deposits in the Northgate district, Jackson County, Colo., are among th...
Report issued by the U.S. Bureau of Mines discussing uranium mining costs and methods on the Colorad...
Report issued by the U.S. Bureau of Mines discussing mining methods of the Rosiclare Fluorspar mine ...
Report issued by the U.S. Bureau of Mines discussing uranium mining methods. As stated in the introd...
Report issued by the U.S. Bureau of Mines over practices of metal mining. As stated in the introduct...
The fluorspar-zinc orebody at Minerva No. 1 mine near Cave in Rock, in Hardin County, Illinois, woul...
At head of title: State Geological Survey, Department of Mining Engineering, University of Illinois,...
This paper describing the inclined cut-and-fill, and the semishrinkage methods of mining at the Camp...
Report issued by the U.S. Bureau of Mines discussing tungsten mining operations conducted in Lincoln...
Report issued by the U.S. Bureau of Mines discussing the mining costs and methods of the Regal asbes...
Report issued by the U.S. Bureau of Mines discussing mining costs and methods of the Black Rock Tung...
This report compiles into a cohesive document details of the individual mines within the Illinois po...
Report issued by the U.S. Bureau of Mines discussing copper mining methods and costs in Gila County,...
Report issued by the U.S. Bureau of Mines discussing the operation and production of the Ward Sand a...
The American fluor spar mines of economic importance are located in the Southern part of Illinois an...
From abstract: The fluorspar deposits in the Northgate district, Jackson County, Colo., are among th...
Report issued by the U.S. Bureau of Mines discussing uranium mining costs and methods on the Colorad...
Report issued by the U.S. Bureau of Mines discussing mining methods of the Rosiclare Fluorspar mine ...
Report issued by the U.S. Bureau of Mines discussing uranium mining methods. As stated in the introd...
Report issued by the U.S. Bureau of Mines over practices of metal mining. As stated in the introduct...
The fluorspar-zinc orebody at Minerva No. 1 mine near Cave in Rock, in Hardin County, Illinois, woul...
At head of title: State Geological Survey, Department of Mining Engineering, University of Illinois,...
This paper describing the inclined cut-and-fill, and the semishrinkage methods of mining at the Camp...