481 acres on a sixteen-mile ridge, and the reason to drive out is the pool: heated, with a water slide, staffed by certified lifeguards and fully accessible. Also a fishing pond, a recycled-tire playground, pavilions and trails.
Going
- Season
- The pool runs Memorial Day weekend through Labor Day, 11am to 6pm.
- Admission
- Not confirmed. The guide describes the pool and names no price.
- The pool
- Heated, with a water slide, renovated in 2023. Refreshments sold at the entrance to the pool building.
- Group camping
- The Hill Run Group Campsite takes up to 40 people, reservable May through September. A large pavilion with a fireplace and electric outlets. Showers and potable water are NOT available; there is a portable bathroom.
- Pavilions
- Three: Mountain Top, Pythian, and Water Station Run, the last with a view over the fishing pond. April to October, 888-432-2267 or parkreservations.maryland.gov.
- Trails
- The 4.5-mile Lonacona Loop, built 2023, gains 650 feet over rocky ground. The Dye School Trail makes a one-mile option and passes the foundation of a one-room schoolhouse from the late 1800s.
- Phone
- 301-895-5453
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