Airmen from the 90th Munitions Squadron fire a cannon at the Grand Entrance to the Cheyenne Frontier Days grounds July 20, 2019 in Cheyenne, Wyo. The Grand Entrance marks the official beginning of the rodeo at CFD. The F.E. Warren Air Force Base and Cheyenne communities came together to celebrate the CFD rodeo and festival, which runs from July 19-28. (U.S. Air Force photo by Senior Airman Abbigayle Williams)