Ellanor C. Lawrence Park
Managed by Fairfax County Park Authority
439 acres6 mi of trail
Woodland TrailGrassy Track
Dog rules not recorded
Directionsto the parking lotWebsite ↗
Photo: Famartin · CC BY-SA 4.0A+Outdoors
Outdoors in Chantilly
21% of Chantilly’s land is conserved, and virtually every resident lives within a half mile of a park
Virtually every resident lives within a half mile of a park. 21% of Chantilly’s land is conserved, about 1,614 acres. 1,643 acres are parks and preserves, 68 per 1,000 residents.
Ahead of 98% of U.S. towns · #10 of 253 in Virginia. What drives it
Conserved land
21%
1,614 acres · of 12.0 sq mi of land
Trails
13 mi
1.1 per sq mi of land
Park land
1,643 ac
68 acres per 1,000 residents
Near a park
99%+
of residents within ½ mile
Bike routes
8.6 mi
4.1 mi lanes · 4.4 mi paths
Highest peak
322 ft
Rock Hill
Lakes & rivers
3
What kind of outdoors town is Chantilly?
Read from the map. The page puts what stands out first.
Outdoors grade
How much outdoors does Chantilly have?
On conserved land, trails, park land and how close residents live to a park, Chantilly is ahead of 98% of U.S. towns, #10 of 253 in Virginia. All four inputs are above most U.S. towns; the share of residents near a park ranks highest, trail miles lowest.
A+
OutdoorsA character grade: shown, never part of Chantilly’s overall grade.
Conserved land21% of the land · typical VA town 4% · U.S. 4%ATrails1.1 miles of mapped trail per square mile of land (13 mi) · VA 0.7 · U.S. 0.4A−Park land68 acres of park per 1,000 residents (1,643 acres) · VA 8 · U.S. 13A−Parks close to homeVirtually all residents within a half mile of a park · VA 76% · U.S. 72%A+
All U.S. towns we grade (21,298)Ahead of 98%
LessMore
Virginia towns of 2,500+ (253)Ahead of 96%
How sure. Graded on any three of the four inputs instead, the letter would range from A to 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 Ellanor C. Lawrence Park, with 6 miles. Directions go to the nearest trailhead or public parking.
Richard W Jones Park
Managed by Fairfax County Park Authority
245 acres1.1 mi of trail
Dog rules not recorded
Directionsto the parking lot
Flatlick Stream Valley Park
Managed by Fairfax County Park Authority
69 acres0.8 mi of trail
Dog rules not recorded
Directionsto the parking lot
Little Rocky Run Stream Valley Park
Managed by Fairfax County Park Authority
75 acres0.7 mi of trail
Rocky Run Stream Valley Trail
Dog rules not recorded
Directionsto the parking lot
Cub Run RECenter
Managed by Fairfax County Park Authority
38 acres0.3 mi of trail
Dog rules not recorded
Directionsto Cub Run RECenter parkingWebsite ↗
All 12 parks & preserves
Ellanor C. Lawrence Park439 acres · 6 mi of trail · Fairfax County Park Authority
DirectionsRichard W Jones Park245 acres · 1.1 mi of trail · Fairfax County Park Authority
DirectionsFlatlick Stream Valley Park69 acres · 0.8 mi of trail · Fairfax County Park Authority
DirectionsLittle Rocky Run Stream Valley Park75 acres · 0.7 mi of trail · Fairfax County Park Authority
DirectionsCub Run RECenter38 acres · 0.3 mi of trail · Fairfax County Park Authority
DirectionsFrog Branch Stream Valley Park75 acres · 0.2 mi of trail · Fairfax County Park Authority
DirectionsPoplar Tree Park39 acres · 0.2 mi of trail
DirectionsFox Valley Park11 acres · 0.2 mi of trail · Fairfax County Park Authority
Mountain Road District Park200 acres · Fairfax County Park Authority
DirectionsChantilly Library Site8 acres · Fairfax County Park Authority
DirectionsChantilly Park6 acres · Fairfax County Park Authority
DirectionsFlatlick Shop Park5 acres · Fairfax County Park Authority
Who protects it
1,614 conserved acres
21% of Chantilly’s land. Who manages Chantilly’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
County1,636 ac
Not recorded1,272 ac
Local Park · 2,908 ac
The biggest protected parcels
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Ellanor C. Lawrence Park Local Park | Not recorded | 878 | Open |
| Richard W. Jones City Park Local Park | Not recorded | 488 | Open |
| Mountain Road District Local Park | Not recorded | 399 | Open |
| Rock Hill District Local Park | Not recorded | 333 | Open |
| Cub Run Stream Valley Park Local Park | County | 211 | Open |
| Flatlick Stream Valley Park Local Park | Not recorded | 138 | Open |
| Poplar Tree City Park Local Park | Not recorded | 77 | Open |
| Rocky Run Stream Valley Park Local Park | County | 76 | Open |
| Frog Branch Stream Valley Park Local Park | County | 75 | Open |
| Cub Run Recenter Local Park | County | 73 | Open |
5 smaller protected places aren’t shown.
Things to do
40 places to go in Chantilly
Beaches, playgrounds, peaks, falls and more. Pick a kind.
Public pools in Chantilly
Cub Run Rec CenterIn Cub Run RECenter
DirectionsPleasant Valley Pool
DirectionsPleasant Valley wading pool
DirectionsPlaygrounds in Chantilly
Armfield Farm Dragon Park
DirectionsArmfield Farm Pool Park
DirectionsArmfield Farm Witch’s Hat Park
DirectionsSplash Pool
DirectionsTot Lot
DirectionsTot Lot
Directions32 playgrounds are on OpenStreetMap in all; the list shows named ones from the first 30.
Dog parks in Chantilly
Rock Hill District Dog Park
DirectionsRock Hill District Dog Park
DirectionsScenic views in Chantilly
Silas Hutchison Dam Ruins
DirectionsPeaks in Chantilly
Rock Hill322 ft elevation
DirectionsPicnic areas in Chantilly
Picnic Area at Ellanor C. Lawerence ParkIn Ellanor C. Lawrence Park
DirectionsTrails & water
4 named trails and 3 lakes & rivers
Named trails
Open to bikes · 4.6 miUnpaved · 10.0 mi
Rocky Run Stream Valley Trail0.6 mi
Woodland Trail0.4 mi
Grassy Track0.4 mi
Jogging Track0.2 mi
Lakes & rivers tap for directions
Biking & sports
8.6 miles of bike routes
Bike lanes are often missing from the map in smaller towns, so that number is likely low.
4.1 mi
painted or protected bike lanes
4.4 mi
off-road bike paths
0.1 mi
shoulders & shared lanes
Rock Run TrailBike route
0.6 miCourts & fields
24Basketball
18Tennis
16Baseball
14Golf
12Soccer
2Football
1Multi-sport
1Volleyball
Includes school and college facilities, which aren’t always open to the public.
History along the way
History →1 place on the National Register
The country’s official list of places worth saving (National Park Service). The map also marks 1 historic points from OpenStreetMap: plaques, memorials and old buildings.
SullyBuilding · listed 1970
About itWhen to get out
The best walking months in Chantilly: April 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) | 43 | 46 | 55 | 67 | 75 | 83 | 87 | 86 | 79 | 68 | 56 | 47 |
| Rain (in) | 2.9 | 2.5 | 3.5 | 3.3 | 4.3 | 4.1 | 4.2 | 3.5 | 4.1 | 3.7 | 3.0 | 3.4 |
February is the driest month (2.5 in) and July the warmest (highs of 87 °F). 4.3 inches fall in May, the wettest month. Summer highs reach 87 °F, too hot for the outline. The climate in Chantilly →
Next door
Chantilly and its neighbors
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 |
|---|---|---|---|---|---|
| Chantilly | 21% | 1.1 | 68 | 99%+ | A+ |
| Centreville | 12% | 1.2 | 13 | 97% | A |
| Franklin Farm | 2% | 0.4 | 6 | 99% | B |
| Sully Square | 9% | 1.4 | 21 | 99%+ | A |
| Bull Run | 43% | 1.7 | 453 | 94% | A+ |
| Greenbriar | 13% | 0.8 | 15 | 99%+ | A |
The four inputs of the Outdoors grade, from the engine; shares are of land, not water.
Questions about parks and trails in Chantilly
Where can I hike in Chantilly?
The longest trail networks: Ellanor C. Lawrence Park, 6 miles; Richard W Jones Park, 1.1 miles; Flatlick Stream Valley Park, 0.8 miles; Little Rocky Run Stream Valley Park, 0.7 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
How much of Chantilly is conserved land?
21% of its land, against a typical 4% for a Virginia town and 4% nationally (PAD-US). Conserved doesn’t always mean open to visitors: easements are usually private land.
Are dogs allowed on Chantilly’s trails?
Ellanor C. Lawrence Park and Richard W Jones Park don’t have dog rules recorded on the map; check the signs at the trailhead.
Where can I bike in Chantilly?
8.6 miles of bike routes are on the map: 4.1 of painted or protected lanes, 4.4 of off-road paths and 0.1 of shoulders and shared lanes. Named routes: Rock Run Trail.
Is there public land near Chantilly?
23,339 acres of parks and open public land lie inside Chantilly or within 10 miles of it (PAD-US), 1,643 of them inside the town line.
How much outdoors does Chantilly have?
Ahead of 98% of U.S. towns on the Outdoors grade, #10 of 253 in Virginia. 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 Chantilly 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 →