Colorado
Territory: 1861–1876
Statehood: 1 Aug 1876
38th state of the United States
Bordering 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 College Special Collections
Colorado Directories, University of Colorado Boulder
Colorado State University Archives and Special Collections
Denver Public Library Digital Collections
Denver Public Library, Western History / Genealogy Library
Digital Collections, Colorado Encyclopedia
Genealogy, Colorado State Archives
History, Colorado State Archives
State of Colorado Archives Search
University of Colorado Digital Library
University of Denver Digital Collections
Manuscripts
Colorado Manuscripts, Archive Grid
Colorado Manuscripts, Library of Congress
Additional websites
Record Sets-State Level
Colorado Record Sets (Ancestry Collections)
Colorado Record Sets (Family Search)
Virtual Libraries
State of Colorado
History of Colorado, vol. 2, Wilbur Fiske Stone, 1918.
Newspapers
Chronicling America, digitized: Colorado
Community History Archive Newspapers: Colorado
Small Town Newspapers
(Select Colorado)
Colorado Historic Newspapers Collection, Colorado State Library
Denver Obituary Project, Denver Public Library (Index)
Maps
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.