Kansas Nebraska Colorado Rocky Mountains Omaha Topeka Boulder 1866 Mitchell mapMap of Kansas, Nebraska, and Colorado, Showing Also the Southern Portion of Dacotah. (North America, United States, Midwest, Nebraska, Kansas, Colorado, Omaha, Topeka, Boulder). Issued c. 1866, Philadelphia by S. A. Mitchell. 19th century engraved map, with original hand color. Mitchell maps of this mid century era were issued with a range of color as well as variant decorative borders. There are also numerous variant issues of most Mitchell maps of