Castlewood State Park Shelters
The shelters are open for day-use only from 9 a.m. until park closing. No overnight camping is permitted. On-season weekdays (April-October) require reservations at $100/day; weekends are free first-come, first-served. Off-season (November-March) reservations are available daily. Restrooms and water are closed November through March.
Extreme Heat Warning issued July 1 at 1:41PM CDT until July 3 at 10:00PM CDT by NWS St Louis MO
* WHAT...Dangerously hot conditions with heat index values up to 107. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, northeast, and southeast Missouri. * WHEN...Until 10 PM CDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
About
Castlewood State Park Shelters provide covered day-use picnic facilities in one of the St. Louis area's most popular parks. Located along the scenic Meramec River in Ballwin, Missouri, the two shelters offer group gathering spaces with charcoal grills for cookouts. Shelter 1 accommodates up to 75 people with two 3x3-foot grills, while Shelter 2 holds 50 people with one grill. During the on-season from April through October, flush restrooms and water fountains are available near each shelter, along with dumpsters for trash disposal. Shelter 2 also has a volleyball net. During off-season months (November-March), only vault toilets at Lone Wolf Trailhead remain available, and visitors must bring their own water. These are day-use facilities only with no overnight camping permitted. Reservations cost $100 per day and can be made 30 days to 12 months in advance online. On weekends during the on-season, shelters are available free on a first-come, first-served basis. The 1,818-acre park offers hiking and mountain biking trails ranging from beginner to advanced, plus fishing access on the Meramec River.
Directions
From I-270, take the Big Bend Road/Route 366 exit and head west. Turn south on Ries Road, then west on Kiefer Creek Road to the park entrance at 1401 Kiefer Creek Road, Ballwin, MO 63021.
Nearby Campgrounds
Amenities
| Water | Yes |
| Fires Allowed | Yes |
| Toilets | Yes |
| Dump Station | No |
| Wifi | — |
| Pets Allowed | — |
| Showers | No |
| Electric Hookups | — |
| Water Hookups | — |
| Sewer Hookups | — |
| Camp Store | No |
| Price | $100 |
Vehicle
| Max RV Length | — |
| Max Trailer Length | — |
| Big Rig Friendly | — |
| Pull Through Sites | No |
Contact
| Phone | +1 (636) 227-4433 |
Cell Service
| AT&T | Yes |
| Verizon | Yes |
| T-Mobile | Yes |
Availability
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