South Valley Park is Jefferson County Open Space located in Jefferson County west of Ken Caryl, Colorado. The 909-acre Front Range park established in 1999 has 8 miles of hiking trails. Horse and bicycle travel is allowed on 7 miles. Facilities include a parking lot, restrooms, picnic sites. The Fountain and Lyons Formations pierce the meadows and scrubland of the park. Rocky mountain juniper and Gambel oak are found around the rock spires. Commonly seen wildlife includes mule deer, elk.