Fishermen's paradise! Located on Mattawoman Creek, a tributary of the Potomac River, Smallwood State Park offers a unique mix of history and unsurpassed boating conveniences. This park was named after General William Smallwood, a Revolutionary War officer and fourth governor of Maryland. His plantation house, Smallwood's Retreat, has been restored and open to visitors. The 628-acre park offers a 50-boat slip marina, boat launching ramps, picnic and camping areas, pavilions, a recycled tire playground and nature trails.
Reservations can be made for today and can be made up to 365 Day(s) in advance.
Reservations must be made 1 Day(s) ahead of arrival and can be made up to 365 Day(s) in advance.
Reservations must be made 1 Day(s) ahead of arrival and can be made up to 365 Day(s) in advance.
Reservations must be made 1 Day(s) ahead of arrival and can be made up to 365 Day(s) in advance.
2026 Reservable Dates
2027 Reservable Dates
- Boat Ramp
- Canoeing/Kayaking
- Dump Station
- Electric Hookups
- Fishing
- Food
- Hiking / Walking Trails
- Historic Site / Museum
- Hunting
- Interpretive Center
- Marina
- Mini Cabins
- Park Store
- Pet Loops
- Picnic Shelters
- Picnic Tables
- RV Sites
- Restrooms
- Showers
- Water and Sewer Hookups
- Wheelchair Accessible
- Youth Group Camping
Cancel/Change Policies for all Resource Types
Facility Rates*
Apr 03 2026 -
Oct 24 2026
*Displayed rates are base rates and do not reflect discounts, surcharges (holiday/weekend/residency) or incremental charges, such as pet fees.
Prices are subject to change without notice, and all transaction fees, penalties, and donations are non-refundable.







