Pennington County (SD)
From The RadioReference Wiki
Pennington County and Rapid City Rapid City Police Rapid City police conduct their mane radio traffic on RCPD 1. They also use channel two in times of emergency for non-emergent traffic. At all times units may use RCPD 4 as a general car-car channel.
Rapid City Fire
Rapid City Fire conducts their radio traffic on RCFD 1. This include dispaching for fire and EMS units, as well as general traffic. For heavy working structure fires they will take their traffic to a Rapid City Fire Ground 1, a simplex analog frequency.