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General topographical map Sheet V.: [parts of Ohio, West Virginia, Pennsylvania, Maryland, Kentucky and Virginia].

Map shows roads, railroads, cities, towns, and settlements for portions of the majority of Ohio and West Virginia and portions of Pennsylvania, Maryland, and Kentucky. Relief shown by hachures. Scale [ca. 1:633,600].
Date: [1891..1895]
Creator: United States. War Department.
Object Type: Map
System: The Portal to Texas History
Stratigraphy of the Bitmuninous Coal Field of Pennsylvania, Ohio and West Virginia (open access)

Stratigraphy of the Bitmuninous Coal Field of Pennsylvania, Ohio and West Virginia

From introduction: This report deals with the Middle and Upper Carboniferous System.
Date: 1891
Creator: White, Israel C.
Object Type: Report
System: The UNT Digital Library