Campbell County firefighters move slowly toward a blaze during a propane fire training exercise at the departments fire training facility off Railroad Street in Gillette, Wyo., on April 19, 2016. Rotating crews worked knocking down flames and shutting off the propane tank, which was fed by a truck on the scene. Rural firefighter Richard Hauber controlled the intensity of the fire using a pair of wires hooked to valves on the gas feed. "It involves quite a bit of team work and having everything in synch to be able to do that," said Training Chief Ron Smith.