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 Rob Dyke​

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!

​​ Want to Live in Nature?  



Bike and Foot Races - September 16 and 17, 2023​

Special Event - ​From south of McKeldin to Hollofield - Patapsco Trail Fest

Trail users, please be advised that a mountain bike race/ ride will be occurring on September 17th. This bike race/ride will be an all day event and will include areas south of McKeldin to Hollofield (The area includes, Woodstock, Daniels and Pickall). The longest race is a 28 mile loop. You may want to consider one of our many other beautiful trails within Patapsco Valley State Park during this time. The Mckeldin proper area (area between the North and South Branch of the Patapsco River and Marriottsville rd) as well as everything south of Ellicott City will not be used for this event.

Grist Mill Trail

Updated information July 11, 2023​

The Grist Mill Trail will be open for use tomorrow morning 9AM. Please be careful on the trail as the park will continue to do small projects along the trail like removing and adding split rail fencing, mowing, and tree work. Access to and from both tunnel trails are on the down steam side of each bridge. Remember to take all trash with you when leaving the park.​

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