Castlewood Canyon Trails

Lone Elk County Park and the Castlewood Canyon area in Wildwood, St. Louis County, Missouri, United States, offer a network of forested trails within easy reach of the St. Louis metropolitan area. The trail system covers multiple loops ranging from 1 to 8 miles through oak-hickory woodland and along ridgelines above the Meramec River and its tributaries, with elevation changes between 300 and 500 feet on the longer ridgeline routes. The park is accessed via I-44 W from St. Louis to Exit 272 (Lone Elk Park Rd), approximately 25 miles west of downtown, with free parking in the county lot at 1 Lone Elk Park Rd, Valley Park. No permit or entrance fee is required. The park is open year-round during daylight hours. Trail surfaces are primarily hard-packed dirt and natural forest floor, with occasional rock outcroppings on the steeper ridgeline segments. Shade is excellent throughout the forested network, making these trails more comfortable in summer than Missouri's more exposed alternatives in the Ozarks. The trails are generally well-marked with colour-coded blazes; a map is available at the park entrance. Key landmarks include the Castlewood Canyon ridgeline overlook — a rocky promontory above the Meramec River valley accessible via the longer ridgeline loops — active American elk herds grazing in the open meadow sections of Lone Elk Park (visible from the trail year-round), the White Bison Trail (a shorter accessible route near the park entrance), and a trail connector to the Missouri Botanical Garden's Shaw Nature Reserve adjacent to the park (a separate fee applies for Shaw entry). The presence of a free-roaming elk herd is a distinctive feature of the park, with early morning and late afternoon the best times for wildlife viewing. Water and restrooms are available at the park entrance area.