In 1908, the local chapter of the United Daughters of the Confederacy (UDC) purchased 9 acres (3.6 ha) at the center of the Prairie Grove battlefield.

A local business owner and politician, J. Sherman Dill, procured $10,000 ($339,000 in today's dollars) while serving in the 38th Arkansas General Assembly to improve the park.

[2] The portion of the state park within a 64-acre (26 ha) triangle formed by North Road on the northwest and Highway 62 was first listed on the National Register of Historic Places in 1970.

[1] Prominent features of the state park include its battle monument, a chimney carefully relocated here from the site of a skirmish, and the Hindman Museum.

[3] The Prairie Grove Airlight Outdoor Telephone Booth, which is listed on the National Register of Historic Places, is opposite the entrance to the park on Highway 62.