Pavilions and Park
7801 US-301 S (Old Crain Hwy)
Upper Marlboro MD 20772
Pavilion Rentals Pavilion #1 and #2 are available April through October for rental.
The park can be reserved for special events through the Rosaryville Conservancy Reservations and are on a first come first serve basis. Please email your pavilion requests to events@mountairymansion.org or call 301-856-9656.
Once your date is confirmed you will have 1 week to return the contract and full payment of $300.00. All vehicles entering the park are required to pay an entrance fee ($3/vehicle; $4/vehicle out-of-state residents $10 per small bus $20 per school/charter bus).
Payment will be refunded if the reservation is cancelled at least six (8) weeks prior to the event.
Parking is not allowed on the grass except for the designated trailer and overflow parking area adjacent to the Dairy Barn. As with other State Parks all trash must be removed by the renter at the conclusion of the function and the user agrees to be responsible for maintaining the grounds and parking area in the good, clean condition in which it was found immediately prior to renter's usage.
Download Pavilion Contract
Download Directions to the Pavilions
Entrance Service Charge
Rosaryville State Park is open year-round from sunrise to sunset. RSP uses the honor system for service fees - $3/vehicle; $4/vehicle out-of-state residents $10 per small bus $20 per school/charter bus. For more information please call 301-856- 9656.
Annual Pass
The Rosaryville State Park Annual Pass is only valid in Rosaryville State Park. This pass will give the holder access to areas of the park that are closed Monday – Thursday year round for activities that may include Horse Trailer parking or Dog Trials. Annual Pass - $50.00
Volunteer or Donate
Naturally, we encourage both. Call 301.856.9656 or email us at events@mountairymansion.org to offer your goods or services to help support Rosaryville State Park.
Overnight Use
Rosaryville State Park is not equipped or designated for overnight use.
Fireworks and Fires
Fireworks and fires are not allowed.
Off-Road Motorized Vehicles
No motorized vehicles, (including car, trucks, mopeds, motorcycles, and all-terrain vehicles) allowed off paved areas without expressed permission of the MD DNR. Basically, If it has a motor it must stay on the asphault. This prevents damage to the flora and injury to horses using the trails.
Download the Pavilion contract
Download the Pavilion floor plans
