Castlewood State Park

Castlewood State Park

With nearly 17 miles of trails, Castlewood offers some of the best variety of riding in the area. From the flat and curvy along the Meramec river, to the numerous climbs and downhills on the bluffs, there's something here for everyone.

The trails can be simplified roughly into two categories: the easier, flat trails along the river bottom such as the River Scene, and Stinging Nettle; and the more advanced, technical ones in the higher areas including Cedar Bluff, Lone Wolf, the Rollercoaster and Grotpeter.  There are several shorter trails- Mountain Ridge Connector, Ranger Station, and Justin's, which link parts of the main trails. If you're unfamiliar with the park, a map will be very helpful.

Trails along the river bottom are fairly slow to dry, while the higher, rockier ones are more durable and dry more quickly. It would be wise to avoid most of the trails after rain, but this park sees such a high volume of trail use that there is generally always someone out on the trails, no matter the conditions.

Castlewood is one of the busiest, and most popular parks in the area, so you might find yourself sharing the trails with families out for a picnic, hikers, birdwatchers, runners, equestrians, or cross-country mountain bike racers. Be extra careful on nice weekend days, as the park will most likely be extremely busy.


Castlewood is outside St. Louis near Ballwin, along Kiefer Creek Road. Take Hwy 141, Meramec Station Road,  until Big Bend exit. Turn west onto Big Bend. Big Bend turns into Oak Street. Turn left at Ries Road. Go over the hill and turn left at the Castlewood sign.

Trail Information

Trail Steward(s)

Tim Kern
Karen Holtmann
Ryan Overhoff


Beginner / Intermediate


Around 17 miles


Multiple Loops


Trail Conditions

Latest Conditions

From The Krackheads on Sun, 06/14/2020 - 2:00pm - Castlewood State Park (St. Louis Area)
Stinging Nettle has recently been brush hogged and is rolling very fast, By the river is a fair amount of sand that is rideable. Access from BV-RH is wide open. Lots of peeps at Sherman Beach.
From Mogman on Fri, 06/12/2020 - 10:14am - Castlewood State Park (St. Louis Area)
Lower trails along river have the usual few muddy spots but dry clearance on either side of those usual spots.
From jrkmo on Fri, 06/05/2020 - 9:36pm - Castlewood State Park (St. Louis Area)
Tree down about halfway through Rollercoaster, near the old doubletrack cross over. Trail conditions fairly wet, with puddles, but mostly rideable.
From MTBKona22 on Fri, 05/29/2020 - 9:14pm - Castlewood State Park (St. Louis Area)
Rode Grotpeter East of Ries, Roller Coaster, Love, Lone Wolf, and flats to tunnel. Double track sections have huge mud spots, but can ride around 95% of them. Many sections are in perfect shape. Rain Totals Map showed no rain for last 48 hours.
From rmo55c on Sat, 05/23/2020 - 6:00pm - Castlewood State Park (St. Louis Area)
All the front side of park trails were in great shape by Saturday evening. And trails were empty!
From Gski on Mon, 05/11/2020 - 4:59pm - Castlewood State Park (St. Louis Area)
Dry and begging to be ridden. A little loose washout debris in spots but easy to navigate.