Two cottages at Pine Mountain State Resort Park in Pineville, in Bell County, were evacuated because of brush fires approaching them on Saturday.
Fire was reported at three locations in the park at about 10 a.m. Saturday, said Gil Lawson, Kentucky State Parks spokesman.
The three fires are thought to have been intentionally set, state police said in a news release.
By Saturday night, the fires were contained, but 240 acres had burned, said Kristy Whitaker, chief forester for the Kentucky Division of Forestry's southeast region.
Lawson said the park, its lodge and the main road into the park remained open, but a few roads were closed inside the park because of the fire.
He said the fire departments from Middlesboro, Bell County, Pineville and the Frakes community responded, as did employees from Cumberland Gap National Park, the Division of Forestry and Kentucky State Parks.
Firefighters were still working at the park Saturday night, Lawson said.
State police said they were talking with neighbors to try to get information about who might have started the fires.
Anyone with information is asked to call the arson hotline at 1-800-272-7766.