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Ardmore
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:250000
Date:
1963
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Ardmore
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:250000
Date:
1968
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Ardmore
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:250000
Date:
1978
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Geology and Fuel Resources of the Southern Part of the Oklahoma Coal Field: Part 2. The Lehigh District Coal, Atoka, and Pittsburg Counties
From abstract: The rocks exposed in the Lehigh district, in the Arkansas-Oklahoma coal basin, aggregate at least 5,000 feet in thickness. All are of Pennsylvanian age, except scattered thin Pleistocene (?) and Recent deposits. Rocks of Pottsville age crop out extensively in the southwestern part of the district and include the Springer formation, Wapanucka limestone, and Atoka formation. The Pottsville rocks are overlain in the northeastern part by formations of Allegheny age, including the Hartshorne sandstone. McAlester shale, Savanna sandstone, Boggy shale, and Thurman sandstone.
Date:
1937
Creator:
Knechtel, Maxwell M.
Object Type:
Report
System:
The UNT Digital Library
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
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.
Object Type:
Report
System:
The UNT Digital Library