Patapsco Valley State Park

Avalon History Center


Contact: 410-461-5005​
E-mail Patapsco Valley State Park

Baltimore and Howard Counties

Patapsco Valley State Park
8020 Baltimore National Pike
Ellicott City, MD 21043

Hours: 9 a.m. to Sunset

This month's events:​

Plan Ahead, Parks Can Fill Up 

Patapsco Valley State Park extends along 32 ​miles of the Patapsco River, encompassing 16,043 acres and eight developed recreational areas. Recreational opportunities include hiking, fishing, camping, canoeing, horseback and mountain bike trails, as well as picnicking for individuals or large groups in the park’s many popular pavilions.

​Photo by Mark Hollis

The park is nationally known for its trail opportunities and scenery. We have over 200 miles of trails, with 70 of those miles identified as maintained trails. There are hiker-only trails and multi-use trails accessible from many areas of Patapsco.​

Around the Park!

Click the Poster to Learn More!

Mushroom Hike  
Campfire Stories  
Digs for Kids  
The Raven Reading 2022  
Halloween Programs  
What's Down There?  
Loaner Fishing Rods  
Want to Live in Nature?  



The Hilton Area will be closed to vehicular traffic from August 1st through August 4th. Periodic access will be denied for all users through out the time period including the playground and trails. Plan accordingly.

Grist Mill Trail

The Grist Mill Trail will be closed after Labor Day Weekend to permanently repair the footbridges. The trail will be closed for approximately 12 months. The Grist Mill Trail from the Patterson Viaduct footbridge off of Ilchester Rd will remain open to the Buzzards Rock trail connection. Please respect the closure as it will be unsafe to walk, bike or horse ride in the construction area due to heavy equipment use and no stream crossings. The Swinging Bridge will be open for foot traffic but not to access the Grist Mill Trail. Plan ahead.

Click here to sign-up for our monthly newsletter.