Maryland State Parks · Maryland
Greenbrier State Park
Maryland State Parks · Maryland, United States
- Sites
- 165
- Hookups
- 40 electric, 125 no hookups
- Drinking water
- Yes
- Restrooms
- Yes
- Showers
- Yes
- Dump station
- Yes
- Pets
- Yes
- Elevation
- 942 ft
- Dark sky
- Bortle class 4
- Cell coverage
- T-Mobile good · AT&T good · Verizon good (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
- Lake
- Greenbrier Lake
- Nearest town
- Boonsboro
- Address
- 21843 National Pike, Boonsboro, MD 21713
- Phone
- (301) 791-4767
- Activities
- Camping
151 numbered sites are mapped one by one - open the site map to pick yours.
About
Greenbrier State Park, along the Blue Ridge near Boonsboro, centers on a 42-acre spring-fed swimming lake. 165 campsites (125 basic, 40 electric) across several forested loops, with bathhouses and a dump station. Golden Age Pass holders get half-price camping Sunday-Thursday. Reservable through the Maryland Park Service's own ReserveAmerica/Aspira contract, hosted at parkreservations.maryland.gov (not a reserveamerica.com subdomain, though it runs the same underlying platform - confirmed live, "Powered by Aspira").
Fees
Campsite Non-Electric $21.50-$22.50/night, Campsite Electric $27.50-$28.50/night. Displayed rates are the vendor's own published BASE rates and do NOT reflect holiday/weekend/residency surcharges or a pet fee (Maryland applies these as add-ons rather than publishing a separate resident/non-resident base rate the way some other states do). Pets allowed in the Cedar and Dogwood camp loops only - not park-wide.
Weather, month by month
| Month | Typical high | Typical low | Coldest night | Hottest day | Years with a night below 32°F |
|---|---|---|---|---|---|
| January | 37° | 24° | 1° | 55° | 11 of 11 |
| February | 42° | 28° | 6° | 67° | 11 of 11 |
| March | 53° | 34° | 12° | 72° | 9 of 11 |
| April | 65° | 44° | 26° | 87° | 3 of 11 |
| May | 71° | 54° | 38° | 93° | 0 of 11 |
| June | 79° | 60° | 52° | 92° | 0 of 11 |
| July | 86° | 69° | 59° | 100° | 0 of 11 |
| August | 83° | 68° | 58° | 95° | 0 of 11 |
| September | 78° | 62° | 48° | 94° | 0 of 11 |
| October | 63° | 46° | 35° | 81° | 0 of 10 |
| November | 50° | 35° | 24° | 68° | 8 of 10 |
| December | 42° | 30° | 14° | 62° | 10 of 10 |
Mid-month figures from 2016–2026 of daily weather at this spot (ERA5 reanalysis via Open-Meteo, CC BY 4.0), in °F. Typical is the median; coldest and hottest are the extremes seen.
Nearby campgrounds
- Gambrill State Park · Maryland State Parks · 8 mi · 28 sites
- Rohrbach Group Campground · National Park Service · 9 mi · 10 sites
- William Houck Campground (Cunningham Falls State Park) · Maryland State Parks · 9 mi · 142 sites
- Horseshoe Bend Hiker-Biker Campsite · National Park Service · 10 mi · 1 sites
- Manor Area Campground (Cunningham Falls State Park) · Maryland State Parks · 10 mi · 27 sites
All public campgrounds in Maryland · Every state and province · Facts read from the operator 2026-08-25. Confirm fees, rules and current status with the operator before you go.