Greenbrier State Park - United States
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About Greenbrier State Park
RV quick facts for Greenbrier State Park
| Detail | Information |
|---|---|
| Reservation window | Maryland State Parks reservations open up to 12 months in advance through the Maryland DNR reservation system. |
| Full hookups | No full hookups; campground offers standard non-hookup sites for tents and RVs. |
| Dump station | Dump station available on site for registered campers. |
| Generator hours | Quiet hours are observed overnight; generators should only be used during daytime hours. |
| Cell service | Cell coverage is generally available but can be spotty in the lower campground loops due to ridge terrain. |
| Road restrictions | Access via U.S. Route 40 over South Mountain involves sustained grades; no tunnel restrictions on the approach. |
| Pets | Pets permitted in designated pet-friendly loops; not allowed on the swim beach. |
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Best time to visit Greenbrier State Park
Late May through early September is the prime window, when the lake is open for swimming, the campground is in full operation, and shaded forest sites stay comfortable. July and August are the busiest and hottest months, so reservations fill well in advance and weekday arrivals are easier for larger rigs. Spring and fall shoulder seasons bring cooler hiking weather, fewer bugs, and strong autumn color along South Mountain, though the swim beach is typically closed outside the summer season.
Campground closed for the winter season; day-use access only.
Campground closed; trails open to day hikers.
Campground typically opens late in the month; swim area closed.
Camping open; lake too cold for swimming.
Swim beach opens on a limited schedule toward Memorial Day weekend.
Full summer operations begin; reserve campsites well ahead.
Peak season, heavy weekend demand for lakeside sites.
Hot and humid; afternoon thunderstorms common.
Swim beach closes after Labor Day; camping remains strong.
Prime fall color along South Mountain; cool nights.
Campground typically closes late in the month; verify dates before arrival.
Campground closed for the winter; day-use only.
Things to do at Greenbrier State Park
- Greenbrier Lake Swimming Beach EasyRV parking available
The 42-acre lake features a guarded sandy swim beach that is the park's signature attraction in summer. A nearby parking area accommodates day-use visitors arriving by vehicle, and the beach is a short walk from the main campground.
- Boating and Paddling on Greenbrier Lake EasyRV parking available
Visitors can launch canoes, kayaks, and small boats with electric motors only (no gasoline engines) on the lake. A small boat launch and seasonal rentals make it easy for RV campers to spend an afternoon on the water.
- Fishing Greenbrier Lake EasyRV parking available
The lake is stocked with trout in spring and also holds largemouth bass, bluegill, and channel catfish. Bank fishing is accessible from multiple shoreline points near the day-use parking areas.
- Big Red Trail Loop ModerateRV parking available
A moderate forested loop that climbs from the lake area up toward the ridgeline and links with other park trails. Expect rocky footing typical of South Mountain and modest elevation gain.
- Appalachian Trail Access Moderate
The Appalachian Trail runs along the South Mountain ridge just east of the park and can be reached via connector trails or by short drives to trailheads like Washington Monument State Park. This gives RV campers easy access to one of the most famous long-distance footpaths in the country.
- Washington Monument State Park EasyRV parking available
A short drive south on South Mountain leads to the original stone Washington Monument, a Civil War era landmark with panoramic views. The site has a day-use parking lot that accommodates tow vehicles and smaller RVs.
- Antietam National Battlefield Day Trip EasyRV parking available
Antietam National Battlefield is about a 20-minute drive from the park and preserves the site of the bloodiest single day of the Civil War. The visitor center and auto tour route are RV-accessible and make a strong half-day outing from a Greenbrier base camp.
Top Hosts near MD, United States
Nicholas was a great host. Very easy to reach and helpful. Everything was perfect for our 4th of July stay in the camper
Jennifer M. - Jul 2026
He was great to work with. We even forgot to handoff the keys and he was very forgiving and gave us lots of options to get them returned.
Tyler S. - Jun 2026
Robert was extremely helpful, kind, knowledgeable, and patient with us. He was always available to help on the way and responded as soon he saw or heard. As first time RV renters, he gave us the best possible experience we could of had. We highly recommend.
Domingo F. - Jun 2026
I recommend this RV, driving this rig was simple and comfortable. The layout and design of the interior space was perfect and roomy. The dining set makes into a very nice long bed. I will rent this one again.
Deborah F. - Aug 2025
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RV Rentals Greenbrier State Park
Greenbrier State Park, MD, United States
How to get to Greenbrier State Park
The park is on U.S. Route 40 about 10 miles east of Hagerstown and roughly 25 miles south of the Pennsylvania line, with Frederick about 20 miles east and Baltimore about 70 miles east via I-70. Most RVers approach on I-70 and exit toward U.S. 40; the final stretch climbs South Mountain with moderate grades, so drivers of larger motorhomes and trailers should plan for steady mountain ascents and use lower gears on the descent. There are no tunnels with RV restrictions on the main routes in, but low-clearance bridges exist on some secondary Washington County roads, so stick to U.S. 40 and I-70. The nearest major airport for fly-and-rent trips is Baltimore/Washington International (BWI), with Dulles (IAD) and Reagan National (DCA) also within roughly a two-hour drive.
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