Native Stone Lewis & Clark Hiking Trail is a two mile (round trip) gravel hike to Bull Rock Historic Site, complete with signage chronicling the Corps of Discovery's trip through Missouri. Bull Rock is a Lewis & Clark site located on the river side of Native Stone. Native Stone is the home of Native Stone Winery, Bull Rock Brewery, Native Stone Restaurant, Native Stone Lewis & Clark Hiking Trail, Bull Rock Historic Site, and Native Stone Vineyards. Trail hours are 11 a.m. to 4 p.m. Friday, Saturday and Sunday. Additional hours are available for school groups, scouts and other large groups by calling (573)584-8600.