About to the northwest, the site of the Battle of Poison Springs is preserved at Poison Springs Battleground State Park, one of three state parks commemorating the campaign. Oakland Cemetery, which is on the National Register of Historic Places, is the largest Confederate cemetery in the area. Artifacts related to two famous Camden products, Camark pottery and Grapette soft drinks, as well as Civil War and railroad relics, are exhibited at the Camden Visitors Center and Museum. Two major events held in the city are the spring Camden Daffodil Festival and autumn BPW Barn Sale. Other area attractions include White Oak Lake State Park; the Arkansas Museum of Natural Resources at Smackover, and El Dorado.