Friday January 15, 2021 crews responded to the Hitching Post fire on Lincoln Way for a mutual aid call with Cheyenne Fire Rescue, District 1, District 2 and FE Warren early morning and continued operations throughout rest of the day. We sent Crash 4 and Engine 12. Crews were able to assist largely with putting out hidden fire in void spaces with Crash 4 piercing nozzle and snozzle. Crash 4 had the capability of being able to operate the boom and quickly relocate to another area that had fires in void spaces. Engine 12 crew operated in conjunction with neighboring fire departments on scene to extinguish fires from ground and ladders.