From the Cheyenne & Arapaho Tribal Tribune (May 2, 2024):

The Cheyenne and Arapaho Tribes are looking to Congress to gain ownership of land lost centuries ago in order to build an amusement park just west of El Reno.

“I think that the proposed park would really support not only the tribes in an impactful way, but it would help the city and the community,” said Cheyenne and Arapaho Gov. Reggie Wassana.

Plains Heritage Park, an entertainment venue meant to draw people to western Oklahoma, is proposed by the tribes to be built on about 2,500 acres of land currently owned by the USDA. The park will include a living history museum and amusement facilities such as rides and shops. Plains Heritage Park would be more than 10 times the size of Six Flags Over Texas, which is on 212 acres in Arlington, Texas.

Full article here ...

P.S. Here's a link to the full-size render of the proposed park.