Colorado County Evolution - Maps showing the evolution of Colorado county borders. - http://www.stanwyck.com/cogenweb/cocounties.html
1895 Map of Colorado - Jpeg image. - http://fermi.jhuapl.edu/states/1895/co_1895.jpg
Fosdick Plat - 1859 - The original real estate plat (layout of street, block, and lots) of Colorado City, 1859, which was used by Colorado City Town Company to sell lots, and build the new city. - http://history.oldcolo.com/oldtown/maps/fosdick_map_sm.html
Cattle Drive Map - Cattle drive routes to Colorado and Wyoming from Texas. - http://history.oldcolo.com/oldtown/maps/cattle.html
El Paso Canal - Map and general history of the El Paso Canal. - http://history.oldcolo.com/oldtown/maps/canal_sm.html