A- Arvada, Aspen, Aurora, Avon
B- Basalt, Berthoud, Boulder, Breckenridge, Brighton, Broomfield, Brush, Buffalo Creek
C- Canon City, Carbondale, Castle Rock, Clifton, Colorado Springs, Commerce City, Conifer, Cortez
D- Delta, Denver, Dillon, Durango
E- Eaton, Edwards, Elizabeth, Englewood, Evans, Evergreen
F- Fort Collins, Fountain, Fraser, Frisco, Fruita
G- Glenwood Springs, Golden, Granby, Grand Junction, Grand Lake, Greeley, Gypsum
H- Henderson
L- Lafayette, Lakewood, Larkspur, Littleton, Longmont, Louisville, Loveland, Lyons
M- Mead, Montrose
N- Nederland, New Castle, Norwood
O- Olathe
P- Parker, Peyton, Pueblo
R- Rifle
S- Steamboat Springs
T- Tabernash, Thornton
V- Vail
W- Walsenburg, Westminster, Wheat Ridge, Windsor