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Colorado Genealogy Library and Resources

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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

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