Natural Falls State Park is a state-owned park in the Ozarks, in Delaware County, Oklahoma. It lies along U.S. Highway 412, near the Arkansas-Oklahoma state line. The property was privately-owned and known as Dripping Springs until 1990, when the state bought it. The previous owners had also used the property as an attraction and rest stop for travelers on the highway, featuring a swimming pool and gardens. The site was used in the production of the 1974 film Where the Red Fern Grows.