CO-ADM = Adams           
   CO-ARP = Arapahoe        
   CO-BOL = Boulder         
   CO-DEN = Denver          
   CO-DUG = Douglas         
   CO-ELP = El Paso         
   CO-FRE = Fremont         
   CO-GAR = Garfield        
   CO-JEF = Jefferson       
   CO-KIT = Kit Carson      
   CO-LAP = La Plata        
   CO-LAR = Larirner        
   CO-LIN = Lincoln         
   CO-LOG = Logan           
   CO-MSA = Mesa            
   CO-MOF = Moffat          
   CO-MNT = Montrose        
   CO-OTE = Otero           
   CO-PIL = Phillip         
   CO-PUE = Pueblo          
   CO-SUM = Summit          
   CO-WEL = Weld            
   CO-YUM = Yurma