Bureau of Indian Affairs, Dept. of the Interior  (not in order):

Direct:         172.775 MHz  (PL 100Hz) 
Repeater:       171.725 MHz  Input,  172.775 MHz  Output  (PL 100Hz)
Operations: 	165.1625 MHz  	     173.7625 MHz 
Emergencies:    41.27, 41.55, 46.63, 46.81, 46.99, 414.65, 415.40 
Command:  	168.7/170.95, 168.1/170.45, 168.075/170.425, 414.75/417.3MHz
Tactical:  	166.775, 166.935, 168.05, 168.2, 168.25, 168.475, 169.35,
                168.4/166.6125 167.1/169.75, 167.25/166.725
Fire: 	        168.4/166.6125 MHz


Mobiles:        406.475, 171.750, 173.7625, 166.675, 167.95, 168.025, 168.55,
                168.625, 169.15, 169.2, 172.6

Aircraft (AM):  117.975, 121.9375, 121.9625, 122.8, 122.9, 122.925,
                123.025, 123.05, 132.0125

Note:  		Frequencies shown as:  

                xxx.yyyy/xxx.yyyy MHz  

                are also Repeaters.