Pegmatites of the Crystal Mountain District, Larimer County, Colorado (open access)

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.
Date: April 1952
Creator: Thurston, William R.
System: The UNT Digital Library
General Geology of Central Cochise County, Arizona (open access)

General Geology of Central Cochise County, Arizona

From abstract: This report describes the comprising the western two-thirds of the Pearce quadrangle and the eastern two-thirds of the Benson quadrangle of the Geological Survey's Topographic Atlas of the United States and includes about 1,400 square miles in the west-central part of Cochise County, Arizona.
Date: 1956
Creator: Gilluly, James
System: The UNT Digital Library
Thorium Resources of the Mountain Pass District, San Bernardino County, California (open access)

Thorium Resources of the Mountain Pass District, San Bernardino County, California

A report regarding thorium resources located in the Mountain Pass District in San Bernadino County, California
Date: March 1953
Creator: Shawe, Daniel R.
System: The UNT Digital Library