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A Brief History of Colorado

    FACT: Genealogy is the STORY of our ancestors, our FAMILY. It is NOT simply a series of names and dates. In order to better uncover the story of our ancestors lives, sometimes it helps to understand the history of what was going on where they lived. It may explain WHY they moved to that place, or why they moved away from it. Knowing the history of our ancestors lives helps to bring their story to life, and provides clues to help us find MORE information about them.

    Not being historians ourselves, we compile a selection of history, using a variety of online and print sources, such as Encyclopaedia Britannica, Compton's Encyclopedia, and Wikipedia. We hope these historical compiliations are helpful in providing research clues and understanding of how your ancestors lived.

GenealogyForum.com - A Brief History of Colorado




The Political Divisions of Colorado
CountyDate FormedParent CountyCounty Seat
AdamsNovember 15, 1902Arapahoe CountyBrighton
AlamosaMarch 8, 1913Costilla and Conejos CountiesAlamosa
ArapahoeNovember 1, 1861Original CountyLittleton
ArchuletaApril 14, 1885Conejos CountyPagosa Springs
BacaApril 16, 1889Las Animas CountySpringfield
BentFebruary 11, 1870Huerfano County and tribal lands of Arapajo and CheyenneLas Animas
BoulderNovember 1, 1861Original CountyBoulder
BroomfieldNovember 15, 2001Boulder, Adams, Jefferson and Weld CountiesConsolidated city and County - Broomfield
ChaffeeFebruary 10, 1879Carbonate CountySalida
CheyenneMarch 25, 1889Elbert and Bent CountiesCheyenne Wells
Clear CreekNovember 1, 1861Original CountyGeorgetown
ConejosNovember 1, 1861Original CountyConejos
CostillaNovember 1, 1861Original CountySan Luis
CrowleyMay 29, 1911Otero CountyOrdway
CusterMarch 9, 1877Fremont CountyWestcliffe
DeltaFebruary 11, 1883Gunnison CountyDelta
DenverDecember 1, 1902Arapahoe and Adams CountiesConsolidated city and county - Denver
DoloresMarch 4, 1881Ouray CountyDove Creek
DouglasNovember 1, 1861Original CountyCastle Rock
EagleFebruary 11, 1883Summit CountyEagle
El PasoNovember 1, 1861Original CountyColorado Springs
ElbertFebruary 2, 1874Douglas CountyKiowa
FremontNovember 1, 1861Original CountyCanon City
GarfieldFebruary 10, 1883Summit County/TD>Glenwood Springs
GilpinNovember 1, 1861Original CountyCentral City
GrandFebruary 2, 1874Summit CountyHot Sulphur Springs
GunnisonMarch 9, 1877Lake CountyGunnison
HinsdaleFebruary 10, 1874Lake, Conejos, and Costilla CountiesLake City
HuerfanoNovember 1, 1861Original CountyWalsenburg
JacksonMay 5, 1909Larimer CountyWalden
JeffersonNovember 1, 1861Original CountyGolden
KiowaApril 11, 1889Bent CountyEads
Kit CarsonApril 11, 1889Elbert CountyBurlington
La PlataFebruary 10, 1874Lake and Conejos CountiesDurango
LakeNovember 1, 1861Original CountyLeadville
LarimerNovember 1, 1861Original CountyFort Collins
Las AnimasFebruary 9, 1866Huerfano CountyTrinidad
LincolnApril 11, 1889Elbert and Bent CountiesHugo
LoganFebruary 25, 1887Weld CountySterling
MesaFebruary 14, 1883Gunnison CountyGrand Junction
MinneralMarch 27, 1893Hinsdale, Rio, Grande, and Saguache CountiesCreede
MoffatFebruary 27, 1911Routt CountyCraig
MontezumaApril 16, 1889La Plata Coumty Cortez
MontroseFebruary 11, 1883Gunnison CountyMontrose
MorganFebruary 19, 1889Weld CountyFort Morgan
OteroMarch 25, 1889Bent CountyLa Junta
OurayJanuary 18, 1877Hinsdale and Lake CountiesOuray
ParkNovember 1, 1861Original CountyFairplay
PhillipsMarch 27, 1889Logan CountyHolyoke
PitkinFebruary 23, 1881Gunnison CountyAspen
ProwersApril 11, 1889Bent CountyLamar
PuebloNovember 1, 1861Original CountyPueblo
Rio BlancoMarch 25, 1889Garfield CountyMeeker
Rio GrandeFebruary 10, 1874Costilla and Conejos CountiesDel Norte
RouttJanuary 29, 1877Grande CountySteamboat Springs
SaguacheDecember 29, 1866Lake and Costilla CountiesSaguache
San JuanJanuary 31, 1876Lake CountySilverton
San MiguelMarch 2, 1883San Juan CountyTelluride
SedgwickApril 9, 1889Logan County Julesburg
SummitNovember 1, 1861Original CountyBreckenridge
TellerMarch 23, 1899El Paso and Fremont CountiesCripple Creek
WashingtonMarch 9, 1887Weld CountyAkron
WeldNovember 1, 1861Original CountyGreeley
YumaMarch 15, 1889Washington CountyWray

Online Sources for Genealogical Research in Colorado
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