Download a Springhill park map HERE Springhill Park sits along John Paul Hammerschmidt Lake in the lush, rolling hills of Arkansas. Campers come here for boating, birding and relaxing. Avid mountain bikers enjoy the Springhill Park Mountain Bike Trail, a 10-mile "fast" trail where experienced bikers race frequently. The trail is also a designated National Recreation Trail. Springhill Park offers several spacious sites with electric hookups, along with four large group picnic shelters. Additional amenities include showers, a dump station, playground and boat ramps.John Paul Hammerschmidt Lake is on the James W. Trimble Lock and Dam of the Arkansas River. Some campsites line the river while others sit between the lake and Massard Creek. Bottomland hardwood timber banks, steep bluffs and open agricultural fields create the scenery.The Fort Smith Museum of History is located about 20 minutes away.Year-round fishing for catfish, bream, crappie and white and largemouth bass is fantastic in the fertile waters of the Arkansas. From late fall until early spring, the tailwaters immediately below the lock and dam boasts some of the best sauger fishing in the country.