Rosaryville State Park
Managed by Maryland Park Service
1,077 acres14.8 mi of trail
Perimeter TrailTilly TrailAgricultural Heritage Trail
Dog rules not recorded
Directionsto Mount Airy MansionWebsite ↗
Photo: Roberto221 · CC BY-SA 4.0A+Outdoors
Outdoors in Rosaryville
40% of Rosaryville’s land is conserved: 2,335 acres
17 miles of mapped trail cross Rosaryville, 1.9 per square mile of land. 1,539 acres are parks and preserves, 119 per 1,000 residents. 96% of residents live within a half mile of a park.
Among the top 1% of U.S. towns · #4 of 261 in Maryland. What drives it
Conserved land
40%
2,335 acres · of 9.2 sq mi of land
Trails
17 mi
1.9 per sq mi of land
Park land
1,539 ac
119 acres per 1,000 residents
Near a park
96%
of residents within ½ mile
Lakes & rivers
2
What kind of outdoors town is Rosaryville?
Read from the map. The page puts what stands out first.
Outdoors grade
How much outdoors does Rosaryville have?
On conserved land, trails, park land and how close residents live to a park, Rosaryville is among the top 1% of U.S. towns, #4 of 261 in Maryland. All four inputs are above most U.S. towns; conserved land ranks highest, the share of residents near a park lowest.
A+
OutdoorsA character grade: shown, never part of Rosaryville’s overall grade.
Conserved land40% of the land · typical MD town 9% · U.S. 4%A+Trails1.9 miles of mapped trail per square mile of land (17 mi) · MD 0.5 · U.S. 0.4APark land119 acres of park per 1,000 residents (1,539 acres) · MD 9 · U.S. 13AParks close to home96% of residents within a half mile of a park · MD 87% · U.S. 72%A−
All U.S. towns we grade (21,298)Among the top 1%
LessMore
Maryland towns of 2,500+ (261)#4 of 261
Maryland towns conserve more land than most (a typical one, 9%; the U.S., 4%), so Rosaryville’s 40% is ahead of 98% of Maryland towns, while its trails per square mile lead 88% of them.
How sure. Graded on any three of the four inputs instead, the letter would still be A+. Trails and many small parks come from OpenStreetMap, mapped by volunteers, so coverage varies from town to town; the half mile is a straight line from each census block, so a river or highway in the way isn’t counted against it.
PAD-US, OpenStreetMap (© OpenStreetMap contributors), Census 2025 Gazetteer and 2020 blocks; details in Sources below. How TownRatings grades the outdoors →
The map
Conserved land, trails & bike routes
Tap a number to zoom to a park. Tap a layer to hide it.
Easements protect land from building but are usually private.© OpenStreetMap contributors · USGS PAD-US
Places to walk
Pick a walk
The longest trail network is Rosaryville State Park, with 14.8 miles. Directions go to the nearest trailhead or public parking.
Mellwood Hills Community Park
Park
65 acres0.7 mi of trail
Dog rules not recorded
Directionsto the parking lot
Who protects it
2,335 conserved acres
40% of Rosaryville’s land. Who manages Rosaryville’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
Regional agency98 ac
Other or Unknown Local Government59 ac
County18 ac
Other state land12 ac
Not recorded2,198 ac
State Park · 1,031 acState Other or Unknown · 784 acLocal Other or Unknown · 370 acLocal Park · 157 acForest Stewardship Easement · 20 ac
Good to know
Conserved doesn’t always mean open to visitors. 4 acres are conservation easements, usually private land. Public access isn’t recorded for 16 of 24 parcels. The walks above are places people visit.
The biggest protected parcels
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Rosaryville Sp State Park | Not recorded | 1,031 | Unknown |
| Boys Village - Cheltenham State Other or Unknown | Not recorded | 766 | Unknown |
| Maryland-National Capital Park and Planning Commission Property Property Local Other or Unknown | Not recorded | 347 | Unknown |
| Mellwood Hills Community Park Local Park | Other or Unknown Local Government | 59 | Open |
| Melwood-Westphalia Park Local Park | Regional agency | 52 | Open |
| Canter Creek Park Local Park | Regional agency | 25 | Open |
| Piscataway Creek Stream Valley Park State Other or Unknown | Not recorded | 21 | Unknown |
| Cheltenham Community Park State Other or Unknown | Not recorded | 20 | Unknown |
| Hollaway Estates Park Local Park | Regional agency | 17 | Open |
| Charles Branch Stream Valley Park Private Other or Unknown | Not recorded | 11 | Unknown |
2 smaller protected places aren’t shown.
Things to do
9 places to go in Rosaryville
Beaches, playgrounds, peaks, falls and more. Pick a kind.
Public pools in Rosaryville
Cheltenham PoolIn Cheltenham Recreational Facility
DirectionsCheltenham PoolIn Cheltenham Recreational Facility
DirectionsPlaygrounds in Rosaryville
Cheltenham Playground
DirectionsCheltenham Playground
DirectionsPlus 3 playgrounds without a name on the map. Tap “Show all on map” to see them.
Picnic areas in Rosaryville
1 picnic area without a name on the map. Tap “Show all on map” to see it.
Campgrounds in Rosaryville
Youth Camp
DirectionsTrails & water
3 named trails and 2 lakes & rivers
Named trails
Open to bikes · 12.9 miHorses · 9.6 miUnpaved · 13.7 mi
Perimeter Trail9.7 mi
Tilly Trail1.9 mi
Agricultural Heritage Trail1.1 mi
Lakes & rivers tap for directions
Biking & sports
0.0 miles of bike routes
Bike lanes are often missing from the map in smaller towns, so that number is likely low.
Courts & fields
7Tennis
4Baseball
2Basketball
Includes school and college facilities, which aren’t always open to the public.
When to get out
The best walking months in Rosaryville: April to June and August
NOAA’s 1991–2020 normals for the town and the daylight at its latitude. Outlined months have long days, highs of 59 to 86 °F and little rain for the place.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 9.7 | 10.7 | 11.8 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.4 | 11.1 | 10.0 | 9.5 |
| High (°F) | 44 | 48 | 56 | 67 | 75 | 84 | 88 | 86 | 79 | 69 | 57 | 48 |
| Rain (in) | 3.1 | 2.7 | 4.0 | 3.4 | 4.0 | 4.4 | 4.5 | 4.2 | 4.5 | 3.8 | 3.2 | 3.7 |
February is the driest month (2.7 in) and July the warmest (highs of 88 °F). 4.5 inches fall in July, the wettest month. Summer highs reach 88 °F, too hot for the outline. The climate in Rosaryville →
Next door
Rosaryville and its neighbors
Rosaryville has the second most mapped trails of the 4 towns around it. Tap a town to see its outdoors.
| Town | Conserved of land | Trail mi per sq mi | Park acres per 1,000 | Near a park ½ mile | Outdoors |
|---|---|---|---|---|---|
| Rosaryville | 40% | 1.9 | 119 | 96% | A+ |
| Clinton | 11% | 0.9 | 11 | 73% | A− |
| Brandywine | 19% | 0.5 | 46 | 83% | A |
| Marlton | 11% | under 0.1 | 5 | 82% | C+ |
The four inputs of the Outdoors grade, from the engine; shares are of land, not water.
Questions about parks and trails in Rosaryville
Where can I hike in Rosaryville?
The longest trail networks: Rosaryville State Park, 14.8 miles; Mellwood Hills Community Park, 0.7 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
How much of Rosaryville is conserved land?
40% of its land, against a typical 9% for a Maryland town and 4% nationally (PAD-US). Conserved doesn’t always mean open to visitors: easements are usually private land.
Are dogs allowed on Rosaryville’s trails?
Rosaryville State Park and Mellwood Hills Community Park don’t have dog rules recorded on the map; check the signs at the trailhead.
Is there public land near Rosaryville?
17,207 acres of parks and open public land lie inside Rosaryville or within 10 miles of it (PAD-US), 1,539 of them inside the town line.
How much outdoors does Rosaryville have?
Among the top 1% of U.S. towns on the Outdoors grade, #4 of 261 in Maryland. The grade combines the share of land that is conserved, miles of mapped trail per square mile of land, park acres per 1,000 residents and the share of residents within a half mile of a park. It’s a character grade, so it isn’t part of the overall grade. How it works.
Trail talk
Conditions, parking and favorite walks from Rosaryville neighbors.
Share a tip
Sources
Where this page comes from
Conserved and public land: USGS Protected Areas Database of the United States (PAD-US), service updated July 2026. Parks, trails, playgrounds, beaches and other places: OpenStreetMap (© OpenStreetMap contributors, ODbL), map data as of 2026-10-28. Land and water area: Census 2025 Gazetteer. Residents near a park: 2020 Census blocks. National Register: National Park Service. How TownRatings grades the outdoors →