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Colton's new topographical map of the states of Virginia, West Virginia, Maryland & Delaware : and portions of other adjoining states, 1896.
Map shows existing and proposed railroads, counties, common roads, canals, swamps, cities, towns, post offices, and notable physical features. Relief shown by hachures. Scale [ca. 1:760,320].
Date:
1896
Creator:
G.W. & C.B. Colton & Co.
Object Type:
Map
System:
The Portal to Texas History
The Potomac Formation in Virginia
From introduction: The object of this memoir is to give some account of the geology of the lower Potomac formation in Virginia, where it is perhaps most typically developed.
Date:
1896
Creator:
Fontaine, William Morris
Object Type:
Report
System:
The UNT Digital Library