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First Appearance of Wyoming Territory

Excellent early map of Rocky Mountains and Plains, from the 1868 edition of Mitchell's New General Atlas.

This is the first appearance of Wyoming Territory (created  by the Wyoming Organic Act on July 25, 1868) on this series of Mitchell maps and one of the earliest appearances of Wyoming Territory on a printed map.

 Kansas counties cover only the eastern third of the state. Nebraska counties cover less than half the state. Colorado has only approximately 15 counties. The gold regions near Denver are shown, as are a number of Indian Tribes, early towns, forts, etc. Dakota includes all of Wyoming.

The map shows early proposed railroads, forts, Indian tribes, rivers, mountains, etc. The plains region is still very much in transition, with the results of several major explorations commenced immediately after the civil war are not yet in evidence.

Also shows portions of New Mexico, Texas and Indian Territory.

Samuel Augustus Mitchell Jr. Biography

Samuel Augustus Mitchell Jr. inherited the Mitchell Company from his father in 1860. For over thirty years, the company had specialized in the production of school atlases and wall maps of America. They were one of the pioneers on engraving on steel plates. In 1860, Samuel Jr. released the New General Atlas, which had been compiled in house and replaced a previous atlas by Tanner. The elder Mitchell died in 1868 and Samuel Jr. continued the business until the 1890s. At its height, the Mitchell Company employed 250 people and sold 400,000 publications annually.