LOGAN COUNTY, Okla. (KFOR) — Fire crews responded to a large grass fire near S MacArthur Boulevard and W Charter Oak Road in southwestern Logan County on Thursday afternoon. Video from McIntyre Law Chopper 4 over the scene shows heavy smoke in the area as flames approached nearby homes and barns. Grass fire in southwestern Logan County. Photo courtesy KFOR. As of around 2 p.m., firefighters have mostly contained the fire. No information about possible structure damage is available at this time.