Rich glacial soils support a lush growth of native woods in this hidden treasure. Horseback riders, hikers, bikers and cross-country skiers enjoy several miles of trail through the forest along Brule Creek. The trees and plants attract a variety of birds sure to keep botanists and birdwatchers entertained for hours. Campers enjoy the quiet well-shaded campsites, and the horse camp is the perfect base for a weekend of riding.
Union Grove State Park began as a County Park around 1936. The Brule Creek was dammed to create a small lake. The lake has since filled with silt and the dam was removed. The land was leased to the State of South Dakota in 1946. Since then the park has been host to residents and vacationers alike.