We've had many of the Sikorski Skycranes work fires in Colorado over the years. They were here as late as October, 2020, working the late season fires in Colorado. When working the fires they're usually on the ATC frequencies around airports or on US forest Service frequencies when working the fires. I've not had any experience watching them working anything other than fires. This particular shot was on June 9, 2013 at Metro Airport in Broomfield, CO while working a wildland fire.