unorg. = unorganized
g. = gained
w. = with
fr. = from
atmt. = attachment
exch = exchanged
nca.= non county area
ch. = changed
Ad - Adams
Al - Alamosa
Ara - Arapahoe
Arc - Archuleta
Ba - Baca
Be - Bent
Bo - Boulder
CC - Clear Creek
Cha - Chaffee
Che - Cheyenne
Con - Conejos
Cos - Costilla
Cr - Crowley
Cu - Custer
Del - Delta
Den - Denver
Dol - Dolores
Dou - Douglas
Ea - Eagle
Elb - Elbert
EP - El Paso
Fr - Fremont
Ga - Garfield
Gi - Gilpin
Gra - Grand
Gun - Gunnison
Hi - Hinsdale
Hu - Huerfano
Ja - Jackson
Je - Jefferson
KC - Kit Carson
Kio - Kiowa
LA - Las Animas
Lak - Lake
Lar - Larimer
Li - Lincoln
Lo - Logan
LP - La Plata
Me - Mesa
Mgn - Morgan
Mi - Mineral
Mof - Moffatt
Mtr - Montrose
Mtz - Montezuma
Ot - Otero
Ou - Ouray
Pa - Park
Ph - Phillips
Pi - Pitkin
Pr - Prowers
Pu - Pueblo
RB - Rio Blanco
RG - Rio Grande
Ro - Routt
Sag - Saguache
Se - Sedgwick
SJ - San Juan
SM - San Miguel
Su - Summit
Te - Teller
Wa - Washington
We - Weld
Yu - Yuma
County Census Records
Genealogy Atlas has images of old American atlases during the years 1795, 1814, 1822, 1823, 1836, 1838, 1845, 1856, 1866, 1879 and 1897 for Colorado and other states. Colorado Map Books at Amazon.com
You can view rotating animated maps for Colorado showing all the county boundaries for each census year overlayed with past and present maps so you can see the changes in county boundaries. You can view a list of maps for other states at Census Maps
You can view rotating animated maps for Colorado showing all the county boundary changes for each year overlayed with past and present maps so you can see the changes in county boundaries . You can view a list of maps for other states and State Department of Transportation Maps at County Maps.
