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Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910: Part 1. -- Analyses

Description: From Significance and value of Analyses of Coal: "The analyses published in this report cover samples of coal collected in many different parts of the country with unusual care by experiences men, in such manner as to make them representative of extensive beds of coal."
Date: 1913
Creator: Lord, N. W.
Partner: UNT Libraries Government Documents Department

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.
Partner: UNT Libraries Government Documents Department

Pegmatites of the Crystal Mountain District, Larimer County, Colorado

Description: 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.
Date: April 1952
Creator: Thurston, William R.
Partner: UNT Libraries Government Documents Department

Treasure Hill Area, Larimer County, Colorado

Description: 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.
Date: December 20, 1951
Creator: Wyant, Donald G.
Partner: UNT Libraries Government Documents Department

Hyatt Rach Pegmatite, Larimer County, Colorado

Description: Report issued by the Bureau of Mines over studies conducted on Larimer County pegmatite deposits. Descriptions of the deposits are presented. This report includes tables, maps, photographs, and illustrations.
Date: 1960
Creator: Gilkey, Millard M.
Partner: UNT Libraries Government Documents Department

Pegmatites of the Crystal Mountain District, Larimer County, Colorado

Description: 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.
Date: 1955
Creator: Thurston, William R.
Partner: UNT Libraries Government Documents Department

Shallow Ground Water in the Boulder-Fort Collins-Greeley Area, Front Range Urban Corridor, Colorado, 1975-77

Description: From introduction: This investigation was made as part of a comprehensive geohydrologic study of the Front Range Urban Corridor in Colorado conducted by the U.S. Geological Survey. The purpose of the study was to delineate the areal extent of the aquifer, the altitude and configuration of the water table, and the gradient and underflow in various parts of the area, in order to better understand the quality of water moving into and through the aquifer.
Date: 1983
Creator: Schneider, Paul A., Jr.
Partner: UNT Libraries Government Documents Department

Ground-Water Resources of the Alluvial Aquifers in Northeastern Larimer County, Colorado

Description: From introduction: Ground water is a source of municipal, domestic, stock, and irrigation water supply for most of northeastern Larimer County, Colorado. This report presents the results of a study made to determine the quantity, availability, and quality of the ground water. This information should be useful particularly for land-use planning and the utilization and protection of the ground-water resources.
Date: January 1977
Creator: Hurr, R. Theodore & Schneider, Paul A. (Jr.)
Partner: UNT Libraries Government Documents Department