Delta Crowley 0+

Archuleta County 007 Pagosa Springs 1885-04-14 Split fromConejos County. Named in honor ofColorado State SenatorAntonio D. Archuleta. 12,084 1,354.53sqmi
　　(3,508km)
　　
　　
Baca County 009 Springfield 1889-04-16 Split fromLas Animas County. Named in honor of pioneer andColorado territorial legislatorFelipe Baca. 3,788 2,558.48sqmi
　　(6,626km)
　　
　　
Bent County 011 Las Animas 1870-02-11 Split fromHuerfano Countyand former Cheyenne and Arapaho tribal land. Named in honor of frontier traderWilliam Bent. 6,499 1,541.07sqmi
　　(3,991km)
　　
　　
Boulder County 013 Boulder 1861-11-01 Created as one of the 17 original counties of theTerritory of Colorado. Named for the abundance ofgranitebouldersalongBoulder Creek. 294,567 740.48sqmi
　　(1,918km)
　　
　　
City and County of Broomfield 014 Broomfield 2001-11-15 Split fromBoulder,Adams,Jefferson, andWeldcounties and reorganized as aconsolidated city and county. Named for thebroom cornthat was formerly grown in the area. 55,889 33.57sqmi
　　(87km)
　　
　　
Chaffee County 015 Salida 1879-02-10 Split fromCarbonate County. Named in honor ofJerome Bunty Chaffee, one ofColorado's first twoU.S. Senatorsfrom 1876 to 1879. 17,809Cheyenne County 017 Cheyenne Wells 1889-03-25 Split fromElbertandBentcounties. Named for theCheyenne NationofNative Americans. 1,836 1,781.90sqmi
　　(4,615km)
　　
　　
Clear Creek County 019 Georgetown 1861-11-01 Created as one of the 17 original counties of theTerritory of Colorado. Named forClear Creekwhich originates in the county. 9,088 396.53sqmi
　　(1,027km)
　　
　　
Conejos County 021 Conejos 1861-11-01 Guadalupe County, one of the 17 original counties of theTerritory of Colorado, was renamedConejos Countyafter six days on November 7, 1861. Named for thecottontail rabbitsin the area.Conejosis a Spanish word forrabbits. 8,256 1,290.22sqmi
　　(3,342km)
　　
　　
Costilla County 023 San Luis 1861-11-01 Created as one of the 17 original counties of theTerritory of Colorado. Named for the Costilla River.Costillais a Spanish word meaning eitherlittle riborfurring timber. 3,524 1,229.38sqmi
　　(3,184km)
　　
　　
Crowley County 025 Ordway 1911-05-29 Split fromOtero County. Named in honor ofColorado State SenatorJohn H. Crowley. 5,823 800.27sqmi
　　(2,073km)
　　
　　
Custer County 027 Westcliffe 1877-03-09 Split fromFremont County. Named in memory ofGeorge Armstrong Custer, (1839 - 1876), the U.S. Armycoloneldefeated and killed at theBattle of the Little Bighorn. 4,255 739.24sqmi
　　(1,915km)
　　
　　
Delta County 029 Delta 1883-02-11 Split fromGunnison County. Named for the town ofDeltalocated at thedeltaof theUncompahgre River. 30,952