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Construction of Alcova Dam
Tunison's Wyoming and Eastern Montana
The eleven counties of Wyoming territory as they appeared from 1888 to 1890, when Weston and Big Horn counties were formed.
Wyoming, 13 county config.'
A map of the 13-county configuration which existed for nineteen years, from 1890 to 1909. The map shows the Fremont, Elkhorn, and Missouri Valley Railroad (later the Chicago Northwestern) to Casper, but short of its eventual terminus of Lander.
Wyoming (1890 - 1906)
The counties of Weston and Big Horn were created by the eleventh legislative assembly in March of 1890, just before Wyoming achieved statehood that July. This map by George F. Cram of Chicago shows the new counties, bringing the total to thirteen.…
Wyoming, thirteen counties
The thirteen counties of Wyoming as they appeared when statehood was achieved in 1890.