THE ADVENTURE COLLECTIVE® · Independent discovery and booking for outdoor travel
State Park · MO

Castlewood State Park

Castlewood State Park offers extensive hiking, mountain biking, and scenic river access on the Meramec River within the St. Louis metropolitan area, making it a popular outdoor destination with rugged bluffs and forests.

State Park18374+ Trails

Designation

State Park

Total Wilderness Area

1837

Elevation / Terrain

Diverse Wilderness

Field Editorial Guide

About Castlewood State Park

Castlewood State Park offers extensive hiking, mountain biking, and scenic river access on the Meramec River within the St. Louis metropolitan area, making it a popular outdoor destination with rugged bluffs and forests.

Wilderness Landscape & Natural Heritage

Located in St. Louis County, Missouri, Castlewood State Park spans over 1,800 acres along the Meramec River. The park features steep sandstone bluffs, wooded hills, and river access points that attract visitors for a variety of outdoor activities. The park's diverse landscape supports oak-hickory forests, mixed woodlands, and riparian habitats that provide shelter for deer, wild turkeys, and numerous bird species. Historically, the land was used for agriculture and later developed into a recreational area, officially established as a state park in 1974. Castlewood is especially recognized for its rugged terrain, which challenges mountain bikers and hikers alike on more than 25 miles of multi-use trails. The park also offers fishing opportunities in the Meramec River, as well as seasonal swimming at favored river spots. Landmarks include the high bluffs overlooking the river, scenic overlooks such as Round Mountain, and remnants of old rock quarries. Its proximity to the St. Louis metropolitan area makes it one of the more accessible natural getaway locations in eastern Missouri. The park provides an engaging outdoor experience with well-marked trails, picnic areas, and ample opportunities for wildlife viewing. The blend of river, forest, and bluff landscapes contributes to its appeal for both casual visitors and outdoor enthusiasts seeking adventure near the city.

Field Guide · State Park
Adventure Destinations

Notable Destinations Near Castlewood State Park

Scenic viewpoints, outdoor landmarks, and notable points of interest within 30 miles.

Historic Charm at Lafayette Park, St. Louis⌖ 22 miWalking
Lafayette Park

Historic Charm at Lafayette Park, St. Louis

Explore Lafayette Park in St. Louis, a historical landmark known for its Victorian architecture and serene lake. Enjoy easy walking paths, birdwatching, and vibrant spring flora. Ideal for family-friendly visits and community events.

The Gateway Arch in St. Louis★ 1.5⌖ 24 miSightseeing
The Gateway Arch

The Gateway Arch in St. Louis

Explore the Gateway Arch in St. Louis, a top attraction offering panoramic views of the city. Discover history and stunning architecture while enjoying activities like riverboat tours and photography. Best visited in spring or fall for pleasant weather.

SightseeingView Details→
Majestic Waters of the Mississippi River★ 8.5⌖ 27 miBoating
Mississippi River

Majestic Waters of the Mississippi River

Explore the Mississippi River near Baton Rouge, Louisiana, known for its historical charm and diverse activities. Enjoy boating, fishing, and riverside camping, with mild weather in spring and fall. Ideal for adventure seekers and history enthusiasts.

Majestic Meramec Caverns⌖ 33 miCave Exploration
Meramec Caverns

Majestic Meramec Caverns

Visit the Majestic Meramec Caverns in Sullivan, MO. Explore its easy guided cave tours featuring spectacular geological formations. Enjoy additional activities like canoeing the Meramec River and nearby camping, especially in spring and fall.

Cave ExplorationView Details→
Discover the Wonders of Onondaga Cave State Park⌖ 47 miCave Touring
Onondaga Cave State Park

Discover the Wonders of Onondaga Cave State Park

Explore Onondaga Cave in Leasburg, Missouri, with its stunning stalactites and stalagmites. Enjoy cave tours year-round, moderate hiking at Vilander Bluff Trail, and canoeing on the Meramec River. Perfect for a quiet visit with family.

Cave TouringView Details→

Key Wilderness Highlights

✦ Round Mountain Scenic Overlook with panoramic views of the Meramec River valley✦ Diverse oak-hickory forest ecosystem supporting abundant wildlife✦ Extensive mountain biking trails ranging from beginner to expert✦ Meramec River access points for fishing, swimming, and paddling
Wilderness Recreation

Outdoor Adventures in Castlewood State Park

Explore curated guides for top outdoor sports, trail networks, and wilderness activities.

Park Recreation

Hiking

Available in Castlewood State Park
Park Recreation

Mountain Biking

Available in Castlewood State Park
Park Recreation

Fishing

Available in Castlewood State Park
Park Recreation

Wildlife Viewing

Available in Castlewood State Park
Park Recreation

Swimming

Available in Castlewood State Park
Park Recreation

Picnicking

Available in Castlewood State Park
Park Recreation

Photography

Available in Castlewood State Park
The Ranger Station

Visitor Logistics & Essential Planning

Everything you need to know about entrance passes, seasons, visitor centers, road transit, and wildlife safety in Castlewood State Park.

Passes & Fees

Entrance Requirements & Interagency Passes

Free day-use entry with no permits or fees required.

Wilderness Checklist

Carry paper topographic map & compass in remote zones.
Store all food and scented items in approved bear canisters.
Check wildfire / smoke advisories before backcountry departure.
Pack out everything you pack in (Leave No Trace).
Adventure Basecamps

Gateway Towns Near Castlewood State Park

Stay, dine, and gear up in these mountain towns and scenic basecamps surrounding the park.

Eureka
⌖ 1.74 miles
Gateway Basecamp

Eureka, Missouri

A family-friendly gateway town offering access to diverse outdoor adventures in riverside parks, forests, and scenic trails near the Missouri Ozarks.

Spring through FallExplore Town
Wildwood
⌖ 4.64 miles
Gateway Basecamp

Wildwood, Missouri

A peaceful suburban town blending sprawling natural preserves with extensive trails for outdoor enthusiasts seeking hiking, biking, paddling, and wildlife viewing close to St. Louis.

Spring through FallExplore Town
High Ridge
⌖ 5.37 miles
Gateway Basecamp

High Ridge, Missouri

A quiet suburban town offering easy access to diverse outdoor activities in the scenic Ozarks foothills and nearby state parks.

Spring through FallExplore Town
Ballwin
⌖ 6.12 miles
Gateway Basecamp

Ballwin, Missouri

A family-friendly suburban town offering accessible parks, paved trails, and nearby natural areas perfect for casual outdoor activities and day trips.

Spring through FallExplore Town
Valley Park
⌖ 6.22 miles
Gateway Basecamp

Valley Park, Missouri

A riverside town offering easy access to Missouri’s scenic outdoors, blending hiking, paddling, and cycling with a friendly small-town atmosphere.

Spring through FallExplore Town
Manchester
⌖ 6.84 miles
Gateway Basecamp

Manchester, Missouri

A quiet suburban town with access to parks and trails that offer easy outdoor activities for families and casual explorers.

Spring through FallExplore Town
Expert-Led Wilderness Expeditions

Guided Experiences in Castlewood State Park

Explore scenic backcountry routes and epic wilderness adventures with certified local mountain guides, naturalists, and outfitters.

12 bookable experiences

Availability, pricing, meeting details, and fulfillment are provided by the applicable operator or booking partner.