UNT Libraries Government Documents Department - 9 Matching Results
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- Exploration of the Big Boulder Prospect, Larimer County, Colorado
- 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.
- Geology of the Copper King Mine Area, Prairie Divide, Larimer County, Colorado
- Report discussing the geology of the Copper King mine area, which was worked for uranium following the discovery of pitchblende. The geology of the site is described as well as the history of the area's production.
- Geology of the Copper King Mine area, Prairie Divide, Larimer County, Colorado
- "This report, prepared principally to aid in the interpretation of the core drilling, presents the principal results of the field and preliminary laboratory work by the U.S. Geological Survey; it does not contain information obtained from the core drilling."
- Geology of the Copper King uranium mine, Larimer County, Colorado
- A report regarding the geology of the Copper King Uranium Mine, in Larimer County, Colorado.
- Pegmatites of the Crystal Mountain District, Larimer County, Colorado
- From abstract: The Front Range of Colorado is composed chiefly of schists of the Idaho Springs formation of pre-Cambrian age which have been intruded by a variety of granitic batholiths. In the Crystal Mountain district the Mount Olympus granite, a satellite of Fuller's Longs Peak batholith, forms sills and essentially concordant multiple intrusions in quartz-mica schist that dips southward at moderate to steep angles. A great number of pegmatites accompanied and followed the intrusion of the sills and formed concordant and discordant bodies in schist and granite.
- Pegmatites of the Crystal Mountain District, Larimer County, Colorado
- From introduction: The study of the Crystal Mountain district, Larimer County, Colo., is but one phase of this post-World War II pegmatite program, in part carried out by the Geological Survey on behalf of the Division of Raw Materials of the Atomic Energy Commission.
- Pegmatites of the Crystal Mountain District, Larimer County, Colorado
- Report discussing the geology of the pegmatites in the Crystal Mountain district in Larimer County, Colorado.
- Report of factual data obtained during examination of Copper King shaft, Black Hawk claim no. 1, Larimer County, Colorado
- 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.
- Treasure Hill Area, Larimer County, Colorado
- Abstract: The Treasure Hill area consists of eight mining-lode claims in secs. 10 and 15, T. 9 N., R. 70 W., Larimer County, Colo. All of the workings were examined and samples were taken from most of them. The results of the examination indicate that there is little or no detectable radioactivity in the schist and granite of the area.