Openings here are rare - which is exactly when an alert earns its keep. We watch Camp Greentop Dining Hall and Rec Hall around the clock and ping you the moment a site frees up.
Where the open windows are
Load status
Next 6 monthsWeekdays hold 58% of what's left. Weekend inventory is the scarce asset, and the first thing a cancellation alert wins back.
Open dates by month
Nov 2026 – Dec 2026November holds the most room. 29 of 29 site-nights are still open there.
Holiday windows
Sites open per night · of 1| Window | Night | Sites open | Status |
|---|---|---|---|
| Thanksgiving | THU Nov 26 | 1 | Last site |
| FRI Nov 27 | 1 | Last site | |
| SAT Nov 28 | 1 | Last site | |
| Christmas | THU Dec 24 | 0 | Fully booked |
| FRI Dec 25 | 0 | Fully booked | |
| New Year | THU Dec 31 | 0 | Fully booked |
Christmas is the squeeze. Thu Dec 24: zero of 1 sites. The loosest holiday night still holds 1.
Best-availability sites
Most open dates · 6 mo| Site | Open dates |
|---|---|
| Dining and Rec Hall | 43 |
The one most open sites in the current snapshot. Pair a bookable date with a free alert to cover everything else.
Next windows
As of Aug 7, 2026 snapshotThe next bookable night is Nov 2; the first open weekend starts Nov 6. Everything past that is where an alert earns its keep.
Stays and site detail
Multi-night stays. 1 2-night, 1 3-night, 1 7-night openings where a single site is free for every night — soonest Nov 2 at site Dining and Rec Hall.
Every site with availability (1)
| Site | Max RV | Hookups | Open dates | Longest run | Dates |
|---|---|---|---|---|---|
| Dining and Rec Hall | 0 ft | None | 43 | 43 nights | Nov 2, Nov 3, Nov 4, Nov 5, Nov 6, Nov 7, Nov 8, Nov 9, Nov 10, Nov 11, Nov 12, Nov 13 +31 more |
About Camp Greentop Dining Hall and Rec Hall
Overview
Located on the National Register of Historic Places, Camp Greentop is a perfect location for organized groups to hold large events, retreats, or conferences. The camp has space for 150 people in the recreation hall and dining hall, which includes a commercial kitchen and restrooms. This rental is for daytime use. Overnight lodging is not available, and access to other seasonal facilities (cabins, lodges, comfort stations, pool, central showers, laundry facility) is not included. Guests have exclusive access to the dining hall, recreation hall, and grounds.
Recreation
A variety of hiking trails and picnic facilities are within walking distance of Camp Greentop. The camp includes an athletic field, basketball goals and a swimming pool (open from Memorial Day to Labor Day). Fishing is available by permit within Catoctin Mountain Park and Cunningham Falls State Park, just 3 miles (5 km) from the Catoctin Mountain Park Visitor Center. Cunningham Falls also offers seasonal swimming and boating.
Contact the Catoctin Mountain Park Visitor Center at (301) 663-9388 for additional information on recreation and program opportunities.
Facilities
Camp Greentop will accommodate up to 150 guests. The camp has a commercial kitchen, dining hall, recreational hall, restrooms and athletic field.
The camp has a large group dining hall, a commercial kitchen, and a recreation hall. The dining hall, kitchen, and recreation hall have heating and air conditioning.
The dining hall and recreational hall contain approximately 40 tables and 100 chairs. The recreation hall has a small stage. The commercial kitchen offers various appliances, including a freezer, refrigerator, three ranges, a convection oven, ice machine, microwave, toaster, and dishwasher. The kitchen contains multiple storage spaces.
Outdoor amenities include a grass athletic field and a campfire ring with wooden bench seating. Firewood is provided by the park. Use of firewood from outside the park is not allowed.
Seasonal facilities are not included in this rental: cabins, lodges, central showers, comfort stations, laundry facilities, and pool.
No internet access or Wi-Fi is currently available. Cellular service coverage is best on AT&T or Verizon networks.
Trash facilities include a waste and recycling dumpster
Guests are responsible for cleaning and sanitation of the entire facility, including the restrooms and kitchen. The park provides cleaning equipment, including trash cans, mops, buckets, brooms, dust mops, whisk brooms, vacuum cleaners, and dust pans, as well as limited cleaning supplies. The park does not supply paper products, groups are responsible for ensuring their own paper products (paper towels, toilet paper, etc.). Groups must ensure they have all of the needed cleaning supplies and may choose to contract with a professional for cleaning services. The cleaning of all facilities must be completed by check-out time, and the group leader must remain for a walk-through of the entire camp with a park employee.
Catoctin Mountain Park is committed to sustainable park operations and strongly encourages park visitors to reduce their consumption of energy and generation of waste. There is single-stream recycling available in Camp Greentop.
Natural Features
Catoctin Mountain Park, established in 1936, is located along the eastern portion of the Blue Ridge Mountains. The 5,890.36 acre (2384 ha) mixed hardwood forest includes abundant wildlife, freshwater streams and interesting geologic formations. Camp Greentop, shaded by large trees, includes a grass field and outdoor fire circle. A variety of trails (including some accessible trails), interpretive exhibits and picnic areas are within walking distance of Camp Greentop.
Nearby Attractions
Catoctin Mountain Park is located near many historical and cultural sites. Visitors will enjoy nearby:
Appalachian National Scenic Trail (8 miles/13 km)
Monocacy National Battlefield (18 miles/29 km)
Antietam National Battlefield (26 miles/45 km)
Potomac Heritage National Scenic Trail (26 miles)
Eisenhower National Historic Site and Gettysburg National Military Park (20 miles/32 km)
Chesapeake & Ohio Canal National Historical Park (28 miles/45 km)
Harpers Ferry National Historical Park (37 miles/60 km)
Other attractions include Catoctin Wildlife Preserve and Zoo and Cunningham Falls State Park.
For more information visit the Tourism Council of Frederick County.
Getting there
For GPS Use Only: The street address is 15001 Park Central Road, Thurmont, MD, 21788. This is NOT a mailing address. The mailing address for Camp Greentop is: Catoctin Mountain Park, Camp Greentop, 6602 Foxville Road, Thurmont, MD 21788 (coordinates: 39° 38' 43.9908" N 77° 28' 34.2588" W) From Washington, DC: Take the George Washington Memorial Parkway north to I-495 to I-270 north 27 miles (43.5 km) to Frederick, MD. Take Route 15 for 17 miles (27 km) north to Thurmont, MD. Take Route 77 West (the exit sign is marked Catoctin Mountain Park). Travel approximately 6 miles (9.6 km) west on 77 (you will pass Park Central Road and the park visitor center). Turn right onto Foxville-Deerfield Road. As the road forks, turn right onto Manahan Road. Continue approximately 3/4 mile and turn right on Park Central Road. Drive approximaley 3/4 mile and turn right into Camp Greentop. Park in the large paved parking lot. From Baltimore, MD: Take I-695 beltway to I-70 West to Frederick, MD. Take Route 15 North to Thurmont, MD. Take Route 77 West (the exit sign says Catoctin Mountain Park.) Travel approximately 6 miles (9.6 km) west on Route 77 (you will pass Park Central Road and the park visitor center). Turn right onto Foxville-Deerfield Road. As the road forks, turn right onto Manahan Road. Continue approximately 3/4 mile and turn right on Park Central Road. Drive approximaley 3/4 mile and turn right into Camp Greentop. Park in the large paved parking lot. From Hagerstown, MD: take I-70 East to Route 66 North for 7 miles (11.2 km). Turn right onto Route 64 (East) for 1 mile (1.6 km) then turn right at a traffic light onto Route 77 East for approximately 4 miles (6.4 km). Turn left onto Foxville-Deerfield Road. As the road forks, turn right onto Manahan Road. Continue approximately 3/4 mile and turn right on Park Central Road. Drive approximaley 3/4 mile and turn right into Camp Greentop. Park in the large paved parking lot. From Gettysburg, PA: Take Route 15 South. In Thurmont, MD, exit onto Route 77 West (the exit sign says Catoctin Mountain Park). Travel approximately 6 miles (9.6 km) west on 77 (you will pass Park Central Road and the park visitor center). Turn right onto Foxville-Deerfield Road. As the road forks, turn right onto Manahan Road. Continue approximately 3/4 mile and turn right on Park Central Road. Drive approximaley 3/4 mile and turn right into Camp Greentop. Park in the large paved parking lot.
View on Recreation.gov ↗ Get directions ↗
Photo gallery
FAQ
How do I get a reservation at Camp Greentop Dining Hall and Rec Hall?
Camp Greentop Dining Hall and Rec Hall's single site books up months ahead on Recreation.gov; most openings come from cancellations. Pick a site on the map to see its 6-month calendar, or set a free Campsite Sniper alert to get notified when one opens. You still complete the reservation yourself on Recreation.gov.
Does Campsite Sniper book this campground for me?
No. Campsite Sniper sends alerts and direct Recreation.gov links. It never books, pays for, holds, hoards, or resells reservations.
How current is this availability data?
This page is rebuilt from a fresh snapshot of public Recreation.gov availability roughly hourly (current snapshot: Aug 7, 2026 02:18 UTC). Always confirm final availability on Recreation.gov when you book.
Can I get a multi-night stay at Camp Greentop Dining Hall and Rec Hall?
1 three-night opening are showing, counting only runs where the SAME site is free for all three nights. The soonest starts Nov 2 at site Dining and Rec Hall. Confirm and book on Recreation.gov.
Which month has the most availability at Camp Greentop Dining Hall and Rec Hall?
November 2026, with 29 open site-nights in the current snapshot of 29.
When is the next open date at Camp Greentop Dining Hall and Rec Hall?
As of the Aug 7, 2026 snapshot: the next open date is Mon, Nov 2 and the next open weekend starts Fri, Nov 6. Cancellations can open earlier dates at any time; a free Campsite Sniper alert catches those the moment they appear.
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