Powder Valley Conservation Nature Center is located on Cragwold Road in southwest St. Louis County. The area enables patrons to hike 3 miles of paved trails through over 100 acres of lush forest. The trails offer beautiful views including sloping rocky woods, wildflowers, towering trees and tangled vines. The trails are closed to pets, collecting, fishing, hunting, trapping and alcoholic beverages, and jogging, bicycling, inline skating and skiing are not permitted on the trails.