1
George Lorimer Preserve
Nature preserve
86 acres3.9 mi of trail
Dog rules not recorded
DirectionsTo the trailhead
Outdoors · Tredyffrin
Tredyffrin, PA parks, trails & bike paths
About 14% of Tredyffrin is conserved land, roughly 1,752 acres. There are about 34 miles of mapped trails, and the biggest networks are in George Lorimer Preserve (3.9 mi), Airdrie Forest Preserve (2.9 mi), and Mill Road Park (2.6 mi).
Conserved land, trails, parks and bike routes in Tredyffrin, measured from OpenStreetMap and USGS data.
At a glance
Tredyffrin outdoors
Conserved land
14%
1,752 of 12,633 acres
Trails
34 mi
1.7 mi per sq mi · 29 on conserved land
Parks & preserves
22
55 conserved acres per 1,000 residents
Bike routes
8.3 mi
0.0 mi lanes · 8.3 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
Airdrie Forest Preserve
Nature preserve
75 acres2.9 mi of trail
Dog rules not recorded
No trailhead mapped yet
3
Mill Road Park
Managed by Tredyffrin Township
56 acres2.6 mi of trail
Dog rules not recorded
DirectionsTo the parking lot
4
Cedar Hollow Preserve
Nature preserve
68 acres2.3 mi of trail
Dog rules not recorded
DirectionsTo the parking lot
5
Valley Creek Preserve
Nature preserve
42 acres1.5 mi of trail
Dog rules not recorded
6
Cool Valley Preserve
Nature preserve
37 acres1.5 mi of trail
Dog rules not recorded
DirectionsTo the trail sign
7
Diamond Rock Preserve
Nature preserve
67 acres1.1 mi of trail
Horse-Shoe Trail
Dog rules not recorded
No trailhead mapped yet
8
Cedar Hollow Park
Managed by Tredyffrin Township
31 acres0.9 mi of trail
Cedar Hollow Branch
Dog rules not recorded
DirectionsTo Chester Valley Trail Parking
All 22 parks & preserves
Showing 1–10 of 22 parks & preserves
George Lorimer Preserve86 acres · 3.9 mi of trail
Airdrie Forest Preserve75 acres · 2.9 mi of trail
Mill Road Park56 acres · 2.6 mi of trail · Tredyffrin Township
Cedar Hollow Preserve68 acres · 2.3 mi of trail
Valley Creek Preserve42 acres · 1.5 mi of trail
Cool Valley Preserve37 acres · 1.5 mi of trail
Diamond Rock Preserve67 acres · 1.1 mi of trail
Cedar Hollow Park31 acres · 0.9 mi of trail · Tredyffrin Township
Wilson Farm Park88 acres · 0.2 mi of trail · Tredyffrin Township
Teegarden Park22 acres · 0.2 mi of trail · Tredyffrin Township
Who protects the land
1,752 conserved acres
Who manages it, from PAD-US. Approximate, because parcels can overlap.
Conserved doesn't always mean open to visitors. 154 acres are conservation easements, which are usually private land. Public access isn't recorded for 4 of 109 parcels. The places listed above are parks and preserves people visit.
Biking & sports
Bike routes, courts & fields
- Painted or protected bike lanes0.0 mi
- Off-road bike paths8.3 mi
- Shoulders & shared lanes0.0 mi
- Valley Creek Trail (bike route)0.5 mi
Courts & fields
- Tennis55
- Baseball30
- Pickleball19
- Basketball18
- Soccer9
- Beach volleyball6
- Football4
Counts include school and college facilities, which aren't always open to the public.
Nearby
Tredyffrin and its neighbors
Towns whose outdoors data has been built so far.
| Town | Conserved | Trails | Parks & preserves |
|---|---|---|---|
| Tredyffrin | 13.9% | 33.7 mi | 22 |
| Upper Merion | 17% | 21.2 mi | 17 |
| Easttown | 15.6% | 3.5 mi | 3 |
| Willistown | 35% | 21.4 mi | 10 |
| Schuylkill | 11.5% | 8.8 mi | 2 |
| Radnor | 12.1% | 15.5 mi | 31 |
| East Whiteland | 3.5% | 5.7 mi | 8 |
Trail talk
Conditions & tips from neighbors
No recent posts about Tredyffrin'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.