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The San Juan Country: A Geographic and Geologic Reconnaissance of Southeastern Utah (open access)

The San Juan Country: A Geographic and Geologic Reconnaissance of Southeastern Utah

From abstract: The San Juan country includes an area of about 3,800 square miles east of the Colorado River in San Juan County, southeastern Utah. This paper is based on reconnaissance geographic and geologic surveys made in 1910, 1915, 1925, and 1927-29.
Date: 1938
Creator: Gregory, Herbert E.
Object Type: Report
System: The UNT Digital Library
Copper Mining in North America (open access)

Copper Mining in North America

From introduction: "In this paper are assembled and summarized many subjects relating to the copper industry in North America. Production of mines and districts, history of the industry in North America. Production of mines and districts, history of the industry, geology, of the principal deposits, and mining methods and costs are discussed."
Date: 1938
Creator: Gardner, E. D.; Johnson, C. H. & Butler, B. S.
Object Type: Report
System: The UNT Digital Library

Union Pacific (UP) 7000

A photograph print showing Union Pacific (UP) 7000, 4-8-2, Salt lake City, UT.
Date: August 5, 1938
Creator: Krambeck, J. Wesley
Object Type: Photograph
System: The Gateway to Oklahoma History