1
Little Rocky Run Stream Valley Park
Managed by Fairfax County Park Authority
89 acres0.8 mi of trail
Rocky Run Stream Valley Trail
Dogs on leashMapped in OpenStreetMap
DirectionsTo the parking lot
Outdoors · Greenbriar
Greenbriar, VA parks, trails & bike paths
About 12% of Greenbriar is conserved land, roughly 123 acres. There are about 1.2 miles of mapped trails, and the biggest networks are in Little Rocky Run Stream Valley Park (0.8 mi).
Conserved land, trails, parks and bike routes in Greenbriar, measured from OpenStreetMap and USGS data.
At a glance
Greenbriar outdoors
Conserved land
12%
123 of 997 acres
Trails
1.2 mi
0.8 mi per sq mi
Parks & preserves
4
15 conserved acres per 1,000 residents
Bike routes
3.1 mi
1.3 mi lanes · 1.8 mi off-road paths
Conserved land is a share of the whole town area. Bike lanes are often missing from the map in smaller towns, so that number is likely low.
Map
Conserved land, trails & bike routes
Tap a number or a place below to zoom in© OpenStreetMap contributors · USGS PAD-US
Places to walk
Parks & preserves with trails
Ranked by mapped trail miles. Directions go to the nearest marked trailhead or public parking.
2
Greenbriar Park
Managed by Fairfax County
38 acres0.1 mi of trail
Dog rules not recorded
DirectionsTo the parking lot
3
Greenbiar commons Park
Managed by Fairfax County Park Authority
4 acres
Dog rules not recorded
No trailhead mapped yet
4
Greenbriar Commons Park
Managed by Fairfax County Park Authority
4 acres
Dog rules not recorded
DirectionsTo the parking lot
Things to do
Beaches, playgrounds, falls & more
Pick a kind of place for the list, directions, or pins on the map above.
Playgrounds in Greenbriar
Greenbriar Pool Infant Playground
Greenbriar Pool Playground
Unnamed playground
Unnamed playground
Unnamed playground
Unnamed playground
Unnamed playground
Unnamed playground in Greenbriar Commons Park
Unnamed playground
Trails
Named trails
Open to bikes 1.0 miUnpaved 1.2 mi
- Rocky Run Stream Valley Trail0.7 mi
Water
Lakes & rivers
Tap a name for directions.
Who protects the land
123 conserved acres
Who manages it, from PAD-US. Approximate, because parcels can overlap.
Biking & sports
Bike routes, courts & fields
- Painted or protected bike lanes1.3 mi
- Off-road bike paths1.8 mi
- Shoulders & shared lanes0.0 mi
- Rock Run Trail (bike route)0.7 mi
Courts & fields
- Tennis10
- Basketball8
- Baseball6
- Pickleball4
- Soccer3
- Softball2
- Football2
Counts include school and college facilities, which aren't always open to the public.
Public lands
The biggest protected places in Greenbriar
From USGS PAD-US: who manages each one and whether visitors are welcome.
Local Park 163 ac
| Place | Managed by | Acres | Public access |
|---|---|---|---|
| Rocky Run Stream Valley ParkLocal Park | County | 82 | Open |
| Greenbriar City ParkLocal Park | Not recorded | 73 | Open |
| Greenbriar CommonsLocal Park | Not recorded | 9 | Open |
Nearby
Greenbriar and its neighbors
Towns whose outdoors data has been built so far.
| Town | Conserved | Trails | Parks & preserves |
|---|---|---|---|
| Greenbriar | 12.3% | 1.2 mi | 4 |
| Fair Lakes | 11.3% | 1.1 mi | 4 |
| Chantilly | 20.9% | 12.9 mi | 12 |
Trail talk
Conditions & tips from neighbors
No recent posts about Greenbriar's trails yet. Muddy, icy, a bridge out, where to park: a quick post helps the next person.
Sources: trails, parks, preserves, courts and bike lanes © OpenStreetMap contributors (ODbL), map data as of 2026-09-28. Conserved land: USGS Gap Analysis Project, Protected Areas Database of the United States (PAD-US). Measured against the Census town boundary.
How we measure
"Trails" are OpenStreetMap paths, bridleways, public tracks and unpaved footways, plus footways inside a park or preserve or on a named trail route. Sidewalks are left out. Areas are counted on a 20-meter grid, so overlapping parcels count once. "Conserved" includes conservation easements, which protect land from development but are usually private property. Trailheads are the nearest marked trailhead, public parking lot or information board within about 150 meters of a preserve. Dog rules come from OpenStreetMap when someone has tagged them; otherwise we show what's typical for the land manager, or say the rules aren't recorded.