Statehood: 1 Aug 1876
38th state of the United States
North: Wyoming, Nebraska
South: New Mexico, Oklahoma
East: Kansas, Nebraska
West: Utah, Arizona (SW)
Capital and largest city: Denver
Map: Colorado, 1879 (click map to enlarge)
Library of Congress, Geography and Map Division
Counties: Original counties as listed in the 1876 State Constitution, p. 18: Arapahoe, Bent, Boulder, Clear Creek, Conejos, Costilla, Douglas, Elbert, El Paso, Fremont, Gilpin, Grand, Hinsdale, Huerfano, Jefferson, Lake, LaPlata, Larimer, Las Animas, Park, Pueblo, Rio Grande, Sagauche, San Juan Summit, and Weld. Colorado County Creation Dates and Parent Counties. Counties in 2020: 64
Institutions, Societies, and Government Websites
1876 Colorado Constitution,
Counties listed Sect 48, p. 18.
Carnegie Library for Local History, Boulder Public Library.
Colorado Directories, University of Colorado Boulder
Colorado Manuscripts, Archive Grid
Colorado Manuscripts, Library of Congress
Record Sets-State Level
Colorado Record Sets (Ancestry Collections)
Colorado Record Sets (Family Search)
State of Colorado
History of Colorado, vol. 2, Wilbur Fiske Stone, 1918.
Small Town Newspapers
Colorado Historic Newspapers Collection, Colorado State Library
Denver Obituary Project, Denver Public Library (Index)
Colorado Historical Maps, University of Colorado Boulder
Colorado Maps, Library of Congress
Colorado Landowner Maps, Library of Congress
Interactive Map of Colorado County Formation History, Maps of U.S.