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Beryllium in Colorado

Description: Report discussing properties and uses of beryllium and beryl, an ore of beryllium produced as a by-product of mining in Colorado.
Date: March 1950
Creator: Page, Lincoln R.
open access

Carnotite Resources in the Charles T. Area and Vicinity, San Miguel County, Colorado

Description: Report discussing an exploratory drilling program in the Charles T. area and vicinity during the period from November 1947 and September 1949. "The purpose of the exploration was to discover new carnotite deposits to support milling operations on the Colorado Plateau, and to appraise the uranium and vanadium resources of the area explored."
Date: March 1950
Creator: Bush, Alfred L.
open access

Exploration of the Big Boulder Prospect, Larimer County, Colorado

Description: From introduction: The Big Boulder prospect is in SE 1/4 sec. 36, T.7N., R.,72W., in Tarimer County, Colorado. The prospect has been opened by four irregular trenches and shallow cuts, and a 10-foot discovery shaft. Hanley 1/4 states that 10.5 tons of beryl were produced from the Big Boulder prospect in 1936, and about 600 pounds in 1941.
Date: August 1950
Creator: Thurston, W. R.
open access

Pitchblende Deposits at the Wood and Calhoun Mines, Central City Mining District, Gilpin County, Colorado

Description: From introduction: The purpose of this work was to determine the distribution and reserves of pitchblende in the veins. These particular mines were selected because the other mines that had produced pitchblende in the east were either inaccessible, or accessible under such adverse conditions as to make detailed mapping impracticable.
Date: October 1950
Creator: Moore, Frank B. & Butler, C. R.
open access

Report of factual data obtained during examination of Copper King shaft, Black Hawk claim no. 1, Larimer County, Colorado

Description: A report regarding factual data obtained during an examination of the copper King Shaft, Black Hawk Claim no. 1, Larimer County, Colorado. This report is designed to provide the owners with the factual data obtained from their property in accordance with the Agreement for Mineral Exploration with them.
Date: May 1950
Creator: Granger, H. C. & King, Robert Ugstad
open access

The Uravan Mineral Belt

Description: "This report briefly describes the [Urvanian Mineral Belt] and outlines the geologic evidence supporting its concept. General plans for continuous exploration of this belt, and preliminary prediction of the total amount of carnotite-bearing rocks that might be in one unexplored area, are also presented"
Date: February 1950
Creator: Fischer, R. P.
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