Barnhart is located along the I-55 corridor, so it is very convenient to travel to South St. Louis County for shopping and amenities. There are only two veterinary clinics in Barnhart, but several dozen can be found within twenty miles of Barnhart.
The area has only two very small parks. Sun Valley Park offers a bit of green space for a person and a leashed dog to get some exercise. Glen Park is the site of a steamboat accident. The wreckage of the steamboat is visible when water levels are low. There are very few amenities other than some green space to get out and walk a leashed dog.
Four miles north on Highway 55 is Mastodon State Park, which features several hundred acres of land with trails and picnic sites. Mastodon State Park is where fossil evidence first connecting the Mastodon and early American people was discovered. The museum displays many of the fossilized bones discovered on the property. Dogs are not allowed inside the museum, though. However, dogs are allowed in Missouri state parks, as long as they are kept on a leash no longer than ten feet.
The Mastodon State Park features three trails that a person and a leashed dog may explore together. Limestone Hill Trail is a two-mile long trail that is designated a "rugged" trail with steep inclines and many natural obstacles like logs and small creeks. The Spring Branch Trail is an "easy" trail with a surface of a crushed rock. It is .8 miles long and is both wheelchair- and stroller-accessible. The Wildflower Trail is a .4-mile "moderate" trail that takes a hiker past the bone bed in which the first fossils were discovered.
On the way back to Barnhart, a stop in at Ginny's Frozen Custard stand makes for an ideal way to top off a summer's day. This local favorite has dog-friendly outdoor tables where you and your pup can savor a delicious dessert after a day of exercising.