Best RV Parks & Resorts near Frederick, MD

Searching for an RV campsite near Frederick? Finding a place to camp in Maryland with your RV is easier than ever. Each RV campsite offers quick access to one or more of Frederick's most popular destinations.

Best RV Sites Near Frederick, MD (83)

    Camper-submitted photo from Drummer Boy Camping Resort
    Camper-submitted photo from Drummer Boy Camping Resort
    Camper-submitted photo from Drummer Boy Camping Resort
    Camper-submitted photo from Drummer Boy Camping Resort
    Camper-submitted photo from Drummer Boy Camping Resort
    Camper-submitted photo from Drummer Boy Camping Resort

    1. Drummer Boy Camping Resort

    8 Reviews
    38 Photos
    88 Saves
    Gettysburg, Pennsylvania

    Drummer Boy Camping Resort is the premier destination for our campers who are in search of unparalleled customer service. We are small enough to remain friendly, yet big enough to provide all the amenities our guests have come to expect. In addition, we provide a wide variety of recreational activities for your entire family to enjoy. Our camping resort offers 95 acres of wooded campgrounds and cabins in Gettysburg PA. We have over 400 sites available for seasonal and short term rental. For the customer that wants to be in luxury we have cabins, cottages, and lofts. Drummer Boy is within minutes of battlefield tours, ghost walks and newly constructed visitor center. We are conveniently located within easy driving to many area attractions in Washington D.C., Baltimore MD., Lancaster and Hershey Pennsylvania. Discover Gettysburg's Best Accommodations...Just Minutes From Downtown Gettysburg! All scheduled activities, events, and entertainment are subject to change or cancel without notice due to covid-19 restrictions. ========================================= Whether you're planning a retreat for the whole family, a group of friends or a getaway for two, there's no shortage of unique activities to explore at Drummer Boy Camping Resort. Plan activities upon arrival or visit this page before your departure to plan ahead. Looking for more? Our friendly staff can fill you in on all of the great ways to make your stay a memorable experience.

    • Fires
    • Electric Hookups
    • Phone Service
    • Reservable
    • ADA Access
    • RVs
    Camper-submitted photo from Round Top Campground
    Camper-submitted photo from Round Top Campground
    Camper-submitted photo from Round Top Campground
    Camper-submitted photo from Round Top Campground
    Camper-submitted photo from Round Top Campground
    Camper-submitted photo from Round Top Campground

    2. Round Top Campground

    5 Reviews
    40 Photos
    20 Saves
    Gettysburg, Pennsylvania

    Round Top Campground is a spacious Pennsylvania family vacation oriented campground located just off the Route 134 Exit from Route 15 which "has it all" on 52 acres. Our destination resort amenities include a swimming pool, shuffleboard courts, outdoor pavilion, game room, playground, basketball court, horseshoes, volleyball, main office and store, dump station, laundry, showers and organized activities. Round Top Campground is perfect for an overnight or extended stay as well as for family camping on a SEASONAL basis. We have sites that include full hook-ups, and our new deluxe cottage vacation rentals sleep up to eight and include full linens, appliances, kitchenware and bathroom / shower facilities. We pride ourselves in superior customer service coupled with a superb atmosphere. The Gettysburg area gained its notoriety during the famous civil war battle in 1863 and has continued to be a number one tourist choice with the following local attractions: Gettysburg Battlefield, Gettysburg Battlefield Driving Tour, Gettysburg National Military park, Lincoln's Place, Lincoln Room Museum, Ghost of Gettysburg, Eisenhower National Historic Site (featuring the home of President Eisenhower), Susquehanna Riverboat Cruise, Pioneer Themed Dinner Trains, Explore & More Hands On Children's Museum, National Riding Stable (guided horseback tours), Eichelberger Performing Arts Center, Adams County Winery and a wealth of additional attractions / fine dining. Gettysburg is a shopper's heaven with New Oxford Antiques, Boyd's Bear Country (world's largest teddy bear store) & Gettysburg Village Outlet Shopping (over 100 stores to enjoy). For those seeking additional excitement Round Top Campground is 1 1/2 hours away from Hershey Amusement Park and Amish Country. We look forward to seeing you soon. Whatever you are looking for in Pennsylvania family vacation accommodations, you will find at our campground.

    • Pets
    • Fires
    • Electric Hookups
    • Reservable
    • RVs
    • Cabins
    Camper-submitted photo from Harpers Ferry Campground - River Riders
    Camper-submitted photo from Harpers Ferry Campground - River Riders
    Camper-submitted photo from Harpers Ferry Campground - River Riders
    Camper-submitted photo from Harpers Ferry Campground - River Riders
    Camper-submitted photo from Harpers Ferry Campground - River Riders
    Camper-submitted photo from Harpers Ferry Campground - River Riders

    3. Harpers Ferry Campground - River Riders

    23 Reviews
    92 Photos
    196 Saves
    Harpers Ferry, West Virginia

    Campsites and cabins are available on a beautiful deep water section of the Potomac River near Harpers Ferry in Jefferson County. A four mile section of deep water runs from our campground to above the Dargan Bend Boat Ramp in Maryland. Pontoon boats, fishing boats, water skiing, wake boarding, and jet skis are welcome. Pitch your tent and tie your boat up out front. Bring your RV as well. There are electricity and water hookups for RV sites. For those willing to rough-it, it is a beautiful unique location. We also offer beautiful, River Front Cabins that offer heat and AC, as well as their own full bathrooms.

    • Pets
    • Fires
    • Electric Hookups
    • Phone Service
    • Reservable
    • RVs
    Camper-submitted photo from Thousand Trails Gettysburg Farm
    Camper-submitted photo from Thousand Trails Gettysburg Farm
    Camper-submitted photo from Thousand Trails Gettysburg Farm
    Camper-submitted photo from Thousand Trails Gettysburg Farm
    Camper-submitted photo from Thousand Trails Gettysburg Farm
    Camper-submitted photo from Thousand Trails Gettysburg Farm

    4. Thousand Trails Gettysburg Farm

    8 Reviews
    39 Photos
    73 Saves
    Wellsville, Pennsylvania

    2020 Tripadvisor Hall of Fame! At Gettysburg Farm RV Camping , you'll find a beautiful working farm situated on 120 sprawling acres bordered by Conewago Creek. This Thousand Trails Central Pennsylvania RV campground is centrally located between York, PA and the battlefields of Gettysburg near the quaint, historic town of East Berlin. On the farm, your children can feed and pet the animals, and watch the planting and harvesting of crops. Take the opportunity to travel to the nearby Gettysburg battlefields and learn about the history of the American Civil War. Your Gettysburg Farm RV Camping vacation itinerary will be filled with fun, learning and the natural beauty of the Pennsylvania countryside. Whether you just want to relax poolside, let your children participate in the organized activities, or go on day trip excursions, our Central Pennsylvania RV campground gives you a great selection of options. Central Pennsylvania RV campground on a beautiful working farm Whether you're planning a retreat for the whole family, a group of friends or a getaway for two, there's no shortage of unique activities to explore at Gettysburg Farm RV Campground. Plan activities upon arrival or visit this page before your departure to plan ahead. Looking for more? Our friendly staff can fill you in on all of the great ways to make your stay a memorable experience.

    • Pets
    • Fires
    • Electric Hookups
    • Phone Service
    • Reservable
    • ADA Access
    Camper-submitted photo from Camp Meade RV Park
    Camper-submitted photo from Camp Meade RV Park

    5. Camp Meade RV Park

    2 Reviews
    2 Photos
    30 Saves
    Odenton, Maryland
    • Pets
    • Fires
    • Electric Hookups
    • Phone Service
    • Reservable
    • ADA Access
    Camper-submitted photo from Ben Franklin RV Park
    Camper-submitted photo from Ben Franklin RV Park
    Camper-submitted photo from Ben Franklin RV Park
    Camper-submitted photo from Ben Franklin RV Park

    6. Ben Franklin RV Park

    1 Review
    4 Photos
    5 Saves
    York, Pennsylvania
    • Pets
    • Fires
    • Electric Hookups
    • Phone Service
    • ADA Access
    • RVs
    Camper-submitted photo from Gettysburg Campground
    Camper-submitted photo from Gettysburg Campground
    Camper-submitted photo from Gettysburg Campground
    Camper-submitted photo from Gettysburg Campground
    Camper-submitted photo from Gettysburg Campground
    Camper-submitted photo from Gettysburg Campground

    7. Gettysburg Campground

    25 Reviews
    56 Photos
    155 Saves
    Gettysburg, Pennsylvania

    Located just 3 miles West of the center of town, our Gettysburg Campground is bordered by beautiful Marsh Creek, with both shady or sunny RV sites, and a primitive tent area along the creek. We offer 260 sites, accommodating everything from a tent to literally any size RV. Gettysburg Campground is also the only campground in Gettysburg with an on-site RV repair facility. We also have rustic cabins and full-facility cottages

    • Pets
    • Fires
    • Electric Hookups
    • Phone Service
    • Reservable
    • ADA Access
    Camper-submitted photo from Brunswick Family Campground
    Camper-submitted photo from Brunswick Family Campground
    Camper-submitted photo from Brunswick Family Campground
    Camper-submitted photo from Brunswick Family Campground
    Camper-submitted photo from Brunswick Family Campground
    Camper-submitted photo from Brunswick Family Campground

    8. Brunswick Family Campground

    12 Reviews
    29 Photos
    138 Saves
    Brunswick, Maryland

    The Brunswick Family Campground is located between the Potomac River and the C&O Canal, near Harpers Ferry, WV. This campground is conveniently located 1 hour from the Washington DC and Baltimore beltways and offers over 100 scenic campsites. We offer tent camping, RV camping, and have cabin rentals. We also have pavilions, a bathhouse, boat ramp, camp store, and rent kayaks, canoes, and tubes.

    • Pets
    • Fires
    • Electric Hookups
    • Phone Service
    • Reservable
    • RVs

    $10 - $90 / night

    Camper-submitted photo from Bull Run Regional Park
    Camper-submitted photo from Bull Run Regional Park
    Camper-submitted photo from Bull Run Regional Park
    Camper-submitted photo from Bull Run Regional Park
    Camper-submitted photo from Bull Run Regional Park
    Camper-submitted photo from Bull Run Regional Park

    9. Bull Run Regional Park

    41 Reviews
    72 Photos
    187 Saves
    Iron Gate, Virginia

    Bull Run Campground, located near Interstate 66, is a getaway that is not far from Washington, D.C. and Northern Virginia attractions. Bull Run Park is only 27 miles from Washington, D.C. and 15 miles from the Vienna Metro Center Station. We are convenient for visitors to the Dulles area , Steven F. Udvar-Hazy Center of the National Air and Space Museum and Manassas National Battlefield Park. The variety of campsites available at Bull Run Campground are RV sites with electric only service, Electric RV sites with water, RV sites with full-service (which includes sewer, water and electric), tent sites, rustic cabins and group camping areas. There are two bathhouses in the campground that offer hot showers, sinks, toilets and laundry facilities. The camp store sells camping supplies, snacks, ice and firewood and is open daily from 8 a.m. to 8 p.m.

    • Pets
    • Fires
    • Electric Hookups
    • Phone Service
    • Reservable
    • ADA Access

    $30 - $95 / night

    • No image available
    Showing results 1-10 of 83 campgrounds

    Recent RV Reviews in Frederick

    914 Reviews of 83 Frederick Campgrounds


    • TThe Dyrt PRO User
      Camper-submitted photo from Greenbelt Park Campground — Greenbelt Park
      Nov. 12, 2024

      Greenbelt Park Campground — Greenbelt Park

      Great site - super accessible!

      Sites were well-maintained, including lavatories. Plenty of tree cover. NOTE: park service forbade tying lines or straps to the trees at the time of our visit (Autumn 2024), so if you favor hammock camping or deploying tarps/ridgelines, plan accordingly.

    • Heather The Dyrt PRO User
      Camper-submitted photo from Lazy A Campground
      Oct. 28, 2024

      Lazy A Campground

      Pretty WV countryside

      This campground is small but the sites are spacious- the ones by the creek are. The bathouse is quite a ways from the sites by the creek but they provide a port-a-potty, which was quite full when I was there- thank goodness the days weren’t hot. The bathhouse needs updating- stalls are small and water from the showers go everywhere. Only saw a worker once and I’m not sure he was a worker? It was a weird stay.

    • mThe Dyrt PRO User
      Camper-submitted photo from Gettysburg
      Oct. 25, 2024

      Gettysburg

      Great location

      The resort had great amenities for all ages. We stayed in October so there was plenty of activities for kids from crafts, games, dancing, to trick or treating. The resort ensured safety for the kids during trick or treating and closed all vehicle traffic for 2 hours. The location also had golf cars to rent to explore the sites. All employees were easy to talk to, always had a smile and personable.

    • Jason L.The Dyrt PRO User
      Camper-submitted photo from Gettysburg Campground
      Oct. 15, 2024

      Gettysburg Campground

      Nothing to complain about

      Arrived, quickly showed how to get to our site. We setup without issue and spent 3 nights without anyone bothering us on our tent site. The place was quiet by about 11:10, not sure if it was enforced or happened naturally. The out houses could have been cleaned a bit more regularly as it was a busy long weekend. Overall it was a great experience.

    • Snezana H.
      Camper-submitted photo from Camp Cacapon
      Oct. 7, 2024

      Camp Cacapon

      One of the best camps ever!

      We chose Sullivan’s Camp Cacapon for our first “glamping” trip, and we are so glad we did that! The camp is quiet and immaculately maintained, and it is situated in a lovely area along the river. We stayed in two brand new, enormous glamping tents. Each tent had two comfy queen-size beds, a heater, a fan, and two lamps with USB ports (a touch of luxury). The wi-fi in the camp worked very well for us, and we used it to exchange photos taken while hiking in the nearby Cacapon Resort State Park. The owners thought of everything—they even provided carts to transport your belongings to the site. The pavilion was nice and spacious, and it protected us from rain during dinner. The camp hosts were warm and friendly. We highly recommend this camp, and will be returning for sure!

    • Ioan P.The Dyrt PRO User
      Camper-submitted photo from Falling Waters Campsite
      Oct. 4, 2024

      Falling Waters Campsite

      Very nice and clean

      This campground is nice, convenient for one 🌙 night, but is very tight and almost no privacy . The staff here are very friendly and nice.

    • AThe Dyrt PRO User
      Camper-submitted photo from Hollofield Area Campground
      Oct. 1, 2024

      Hollofield Area Campground

      Closed

      We arrived at 1am, hadn’t made a reservation, and it was closed and the gates locked. No where on the website does it say it’s closed. Very frustrating, especially as a weary traveler.

    • RThe Dyrt PRO User
      Camper-submitted photo from Camp Meade RV Park
      Sep. 23, 2024

      Camp Meade RV Park

      Great RV park to stay near Vicksburg

      Did stay here after visting Vicksburg. Nice clean restrooms and showers. Friendly hostess and we had a nice shady spot, what was great with a heat of 94F.

    • Rob  O.The Dyrt PRO User
      Camper-submitted photo from Owens Creek Campground — Catoctin Mountain Park
      Sep. 20, 2024

      Owens Creek Campground — Catoctin Mountain Park

      So peaceful, free split firewood, close to Gettysburg

      Reservations are made through the National parks service "recreation.gov" website. Arrived for tent camping for 2 nights and found a pleasantly prepared raised bed area to pitch my tent on. My stay was quiet and the bathrooms were clean and well stocked. This is a great base camp for getting out to the Gettysburg National park and battlefield. town is less than 10 miles away that has a grocery store and restaurants. FREE split firewood. So quiet i swear i heard a squirrel burp.

    • Germ E.
      Camper-submitted photo from Evergreen Point Village
      Sep. 20, 2024

      Evergreen Point Village

      Great

      Beyond aesthetics, hiring professionals also addresses health and safety concerns. Many paints emit volatile organic compounds(VOCs ) this link, which can be harmful if inhaled in large quantities. Professional painters often use low-VOC or no-VOC options that are safer for both you and the environment. Additionally, they adhere to safety protocols during the painting process, minimizing the risk of accidents or exposure to hazardous materials.

    • WThe Dyrt PRO User
      Camper-submitted photo from Candy Hill Campground
      Sep. 19, 2024

      Candy Hill Campground

      Quick and sweet

      A clean and well maintained park. The staff is friendly and quick to respond to anyone’s needs. No restaurant within walking range so have food on hand. There are a few places that will deliver but the food is a 5 out of 10 at best. Hwy 81 is right next door so you will hear road noise.

    • Judy W.
      Camper-submitted photo from Bull Run Regional Park
      Sep. 19, 2024

      Bull Run Regional Park

      Noisy but Nice

      Pros - Clean Bathrooms, Camp store open 8am - 8pm, Sites 62 - 92 (except #74 and 88) are all pretty  good.  Security was great, patrol throughout the night.  Quiet hours are enforced and campers are polite.  Lots of activities, and nice hiking trails. Fabulous historical attractions, great visitor center. 

      Cons - Campground is in the flight path of Dulles Airport, so planes are flying over head at all hours of the day and sometimes late at night/morning.  There is a shooting range nearby. Some noise during range hours. (Not late at night!)  Because there had been so little rain, there was not great fishing in the park.  (I went to Silver Lake, that was great!)

      Traffic! Lots of local traffic on the main roads. (to be fair, it IS a suburb of DC ). Stores are all approx. 20 mins away. (Head towards Haymarket)

    • EThe Dyrt PRO User
      Camper-submitted photo from Granite Hill Camping Resort
      Sep. 17, 2024

      Granite Hill Camping Resort

      Family Campground

      Nice family campground that offers alot. Its very big, only 1 central bathhouse for very large area. Female restrooms has 6 toilets and 6 showers (push button, luke warm water). COME PREPARED WITH LEVELING BLOCKS!!!! Our site was very slanting!!

    • N
      Camper-submitted photo from Codorus State Park Campground
      Sep. 15, 2024

      Codorus State Park Campground

      Convenient escape!

      I've stayed at Cordorus a number of times as it's not too far away for a weekend getaway.  Last time was in Sept. 2023 when some tropical storm poured rain for three days. I'm booked for next weekend now in Sept. 2024, so I hope it's a dry one.  I pulled up The Dyrt to see if anything has changed, but I see it's still the great place it always is.

      I usually end up in a dry site as I book late and the electric sites are all filled.

    • K
      Camper-submitted photo from Little Bennett Campground
      Sep. 15, 2024

      Little Bennett Campground

      Great for families

      Fun weekend trip very close to DC. Well kept park with lots of activities for kids - jumping pillow, laser tag, pedal carts, arts and crafts. Nice little game room and some outdoor games at the activity center as well. Full hookup spots in the D loop were pretty nice. The spots in the first half of the loop felt a little close together for my taste, but our spot (D61) was nice as we didn’t have any neighbors on one side. Only complaint is that it’s pricey and has a two night minimum on weekends, but felt worth it with all the activities that were available.

    • B
      Camper-submitted photo from Cowans Gap State Park Campground
      Sep. 13, 2024

      Cowans Gap State Park Campground

      Our favorite close spot from Baltimore area

      We've stayed here at least a half-dozen times with a popup. The smaller B loop is nicer, but no electricity. Pets allowed only on a certain portion of the A loop. The bathrooms are clean, the lake is small but pretty, and the hikes around the lake, and up the mountain on the ridge, are as easy or as challenging as you want. Cell service is pretty much nonexistent so you definitely get unplugged.

    • Adam and Suzanne B.The Dyrt PRO User
      Camper-submitted photo from Lazy A Campground
      Sep. 13, 2024

      Lazy A Campground

      Quiet campground

      This is a really nice campground. Large grassy sites. Easy to maneuver. Lots of open space. Clean bath house. Helpful owners. The only reason it lost a star is that the water has sulfur. It smells and it stained our brand-new toilet and we had to replace all our water filters after one weekend.

    • DThe Dyrt PRO User
      Camper-submitted photo from Brunswick Family Campground
      Sep. 12, 2024

      Brunswick Family Campground

      Nice campground

      The campground is adjacent to a very large, very busy train yard. It’s not bothered me but you should be aware.

      The campground is also right on the Potomac, easy to get to, reasonably priced, and the sites are spacious. The loops are small, each containing a dozen or fewer spaces. Many sites share a power pole and water faucet, but they are well situated.

      There is a small camp store, but the campground is convenient to ample grocery stores, convenience stores, and restaurants as well as many local historic attractions.

    • DThe Dyrt PRO User
      Camper-submitted photo from Harpers Ferry Campground - River Riders
      Sep. 10, 2024

      Harpers Ferry Campground - River Riders

      Loud with trains and car horns

      Busiest train corridor I’ve ever experienced, with several every hour all night. To add to the noise, there is a one-way tunnel a few feet from the campground. The practice is for cars to stop, blow their horn to announce their presence, then proceed into the tunnel.

      I have a 14’ trailer, and it wouldn’t fit into my site perpendicular to the road. I had to pull past then back in so that I was parallel to the road. Ordinarily no big deal, except that the road isn’t a loop. It’s a single lane straight road in. No place to turn around, no way out except to back all the way out.

    • Jake C.The Dyrt ADMIN User
      Camper-submitted photo from Bull Run Regional Park
      Sep. 10, 2024

      Bull Run Regional Park

      Spacious Sites and family friendly

      I stayed here with my family this summer and the park itself is a perfect spot for nature near DC. My son loved the giant playground and full water park at the campground, they even had discounted entry to the water park for campers. We stayed in site 20 which is an easy pull through and had a direct trail to the water park and the full network of trails in the park.

    • Wailym C.
      Camper-submitted photo from Codorus State Park Campground
      Sep. 8, 2024

      Codorus State Park Campground

      Enjoyable & comfortable

      Codorus state campground provided a comfortable and quiet stay.  The trailer sites in loop C are spacious enough with plenty of shades and trees. The open field pet friendly sites are also large but provide no shade and it gets hot!  You can feel the difference between these sites and the interior loop sites.  No cross winds, no breeze, just hot!  The trails from

      Campground are ok for a short walk, not much of a lake view but mostly shaded trail.  The pool is conveniently located maybe even walking distance for some.  But be advised, this is a public pool open to everyone and folks start showing up at 7am, separate entrance road and entry fee was around $10 pp. The lake is great!  Lovely areas to relax and explore.  No swimming allowed anywhere but you can find places to sneak a dip 😉 just look past marina near state park public recreation area.  The park staff won’t give you a hard time they just ask that you don’t go further than waist deep. It is a very large lake.  We highly recommend that you rent a pontoon boat to head out and explore!  Very worth it!  All grounds and areas are clean and kept in great condition.

    • Casey L.
      Camper-submitted photo from Cowans Gap State Park Campground
      Sep. 2, 2024

      Cowans Gap State Park Campground

      Camping Area B -Quiet and Nice

      We stayed in the smaller camping area B, which we enjoyed. Even on Labor Day weekend, it didn’t feel busy because of how few sites are in this section. Our site was level and sizable. The bathroom was clean and there was access to the very pleasant hiking trail going around the lake. We had no cell service with Cricket or Verizon.

    • Richard B.The Dyrt PRO User
      Camper-submitted photo from Hollofield Area Campground
      Aug. 11, 2024

      Hollofield Area Campground

      Nice place to camp

      This campground is pleasant, but the sites are situated quite close to one another. The camping area is away from the main parts of the park through gates, so you won't be bothered by non-camp traffic. A few hiking trails lead to many more extended trails, but it is a steep slope down to the river.

    • PThe Dyrt PRO User
      Camper-submitted photo from Camp Cacapon
      Aug. 7, 2024

      Camp Cacapon

      Fantastic Hidden Gem!!!

      We recently stayed at Sullivan's Camp Cacapon and were truly impressed by the experience. The campsite is extremely well-maintained and offers a great mix of nature and comfort. We appreciated the cleanliness of the camp and the friendly owners who greeted us upon our arrival and even took us on an ATV ride down the river! Waking down to the Cacapon River was a highlight, providing a peaceful and refreshing start and end to each day. It's an ideal spot for anyone looking to escape day-to-day life and enjoy some quality time outdoors. We highly recommend for both new and seasoned campers!

    • Justin W.
      Camper-submitted photo from Camp Cacapon
      Aug. 7, 2024

      Camp Cacapon

      Best decision you’ll make

      I’ve done a lot of camping over the years in a variety of places across the US. Sullivan was unequivocally one of the best places I’ve been and it’s second only to the hospitality of the owners and even the janitorial staff, who do a phenomenal job by the way. If you’re looking for a quiet place away from the world, this is it. Don’t be concerned by the reviews of no signal, yes they are true, but isn’t that part of the appeal?



    Frequently Asked Questions

    • Which is the most popular RV campsite near Frederick, MD?

      According to TheDyrt.com, the most popular RV campground near Frederick, MD is Drummer Boy Camping Resort with a 4.1-star rating from 8 reviews.

    • What is the best site to find RV camping near Frederick, MD?

      TheDyrt.com has all 83 RV camping locations near Frederick, MD, with real photos and reviews from campers.