George Lorimer Preserve
Nature preserve
86 acres3.9 mi of trail
Dog rules not recorded
Directionsto the trailhead
Photo: User:karthik_sripal · CC BY-SA 3.0AOutdoors
Outdoors in Tredyffrin Township
Tredyffrin Township has 34 miles of mapped trails, 1.7 for every square mile of land
14% of Tredyffrin Township’s land is conserved, about 1,752 acres. 91% of residents live within a half mile of a park. The biggest trail networks: George Lorimer Preserve (3.9 mi), Airdrie Forest Preserve (2.9 mi), Mill Road Park (2.6 mi).
Ahead of 91% of U.S. towns · #121 of 1,037 in Pennsylvania. What drives it
Conserved land
14%
1,752 acres · of 19.8 sq mi of land
Trails
34 mi
1.7 per sq mi of land
Park land
571 ac
18 acres per 1,000 residents
Near a park
91%
of residents within ½ mile
Bike routes
8.3 mi
8.3 mi paths
Highest peak
617 ft
Diamond Rock Hill
Lakes & rivers
1
What kind of outdoors town is Tredyffrin Township?
Read from the map. The page puts what stands out first.
Outdoors grade
How much outdoors does Tredyffrin Township have?
On conserved land, trails, park land and how close residents live to a park, Tredyffrin Township is ahead of 91% of U.S. towns, #121 of 1,037 in Pennsylvania. All four inputs are above most U.S. towns; trail miles rank highest, park acres per resident lowest.
A
OutdoorsA character grade: shown, never part of Tredyffrin Township’s overall grade.
Conserved land14% of the land · typical PA town 8% · U.S. 4%A−Trails1.7 miles of mapped trail per square mile of land (34 mi) · PA 0.4 · U.S. 0.4APark land18 acres of park per 1,000 residents (571 acres) · PA 14 · U.S. 13BParks close to home91% of residents within a half mile of a park · PA 73% · U.S. 72%A−
All U.S. towns we grade (21,298)Ahead of 91%
LessMore
Pennsylvania towns of 2,500+ (1,037)Ahead of 88%
Pennsylvania towns conserve more land than most (a typical one, 8%; the U.S., 4%), so Tredyffrin Township’s 14% is ahead of 68% of Pennsylvania towns, while its trails per square mile lead 90% 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 George Lorimer Preserve, with 3.9 miles. Directions go to the nearest trailhead or public parking.
Airdrie Forest Preserve
Nature preserve
75 acres2.9 mi of trail
Dog rules not recorded
No trailhead mapped yet
Mill Road Park
Managed by Tredyffrin Township
56 acres2.6 mi of trail
Dog rules not recorded
Directionsto the parking lot
Cedar Hollow Preserve
Nature preserve
68 acres2.3 mi of trail
Dog rules not recorded
Directionsto the parking lot
Valley Creek Preserve
Nature preserve
42 acres1.5 mi of trail
Dog rules not recorded
Directionsto the trailheadWebsite ↗
Cool Valley Preserve
Nature preserve
37 acres1.5 mi of trail
Dog rules not recorded
Directionsto the trail sign
Diamond Rock Preserve
Nature preserve
67 acres1.1 mi of trail
Horse-Shoe Trail
Dog rules not recorded
No trailhead mapped yet
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
George Lorimer Preserve86 acres · 3.9 mi of trail
DirectionsAirdrie Forest Preserve75 acres · 2.9 mi of trail
Mill Road Park56 acres · 2.6 mi of trail · Tredyffrin Township
DirectionsCedar Hollow Preserve68 acres · 2.3 mi of trail
DirectionsValley Creek Preserve42 acres · 1.5 mi of trail
DirectionsCool Valley Preserve37 acres · 1.5 mi of trail
DirectionsDiamond Rock Preserve67 acres · 1.1 mi of trail
Cedar Hollow Park31 acres · 0.9 mi of trail · Tredyffrin Township
DirectionsWilson Farm Park88 acres · 0.2 mi of trail · Tredyffrin Township
DirectionsTeegarden Park22 acres · 0.2 mi of trail · Tredyffrin Township
DirectionsRadbill Park41 acres · 0.1 mi of trail · Tredyffrin Township
DirectionsCrabby Creek Park37 acres · 0.1 mi of trail · Tredyffrin Township
DirectionsLouis A. D'Ambrosia Park15 acres · 0.1 mi of trail · Tredyffrin Township
DirectionsJenkins Arboretum & Gardens14 acres · 0.1 mi of trail · Jenkins Arboretum & Gardens
Strafford Park & Library13 acres · 0.1 mi of trail · Tredyffrin Township
DirectionsTredyffrin Township Open Space9 acres · Tredyffrin Township
Westover Park7 acres · Tredyffrin Township
DirectionsFriendship Park5 acres · Tredyffrin Township
DirectionsWoodbine Park3 acres · Tredyffrin Township
DirectionsMazie B. Hall Park2 acres · Tredyffrin Township
Sun Bowl1 acres
Bocce Grove1 acres · Tredyffrin Township
Who protects it
1,752 conserved acres
14% of Tredyffrin Township’s land. Who manages Tredyffrin Township’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
Land trusts & nonprofits1,276 ac
National Park Service728 ac
Other or Unknown Local Government404 ac
Town or city39 ac
Not recorded535 ac
Private Conservation · 1,128 acHistoric or Cultural Area · 722 acLocal Park · 363 acOther Easement · 224 acLocal Recreation Area · 208 ac
Good to know
Conserved doesn’t always mean open to visitors. 154 acres are conservation easements, usually private land. Public access isn’t recorded for 4 of 109 parcels. The walks above are places people visit.
The biggest protected parcels
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Valley Forge National Historical Park Historic or Cultural Area | National Park Service | 722 | Restricted |
| Open Land Conservancy Of Chester County Private Conservation | Land trusts & nonprofits | 278 | Closed |
| Airdrie Forest Preserve Private Conservation | Not recorded | 146 | Open |
| Diamond Rock Nature Preserve Private Conservation | Not recorded | 131 | Open |
| Cedar Hollow Preserve Private Conservation | Not recorded | 123 | Open |
| Wilson Tract Local Recreation Area | Not recorded | 88 | Open |
| Wilson Park Local Park | Other or Unknown Local Government | 88 | Open |
| Valley Creek Preserve Private Conservation | Not recorded | 88 | Open |
| Jenkins Arboretum & Gardens Private Conservation | Not recorded | 87 | Open |
| George Lorimer Preserve Private Conservation | Not recorded | 86 | Open |
5 smaller protected places aren’t shown.
Things to do
36 places to go in Tredyffrin Township
Beaches, playgrounds, peaks, falls and more. Pick a kind.
Playgrounds in Tredyffrin Township
24 playgrounds without a name on the map. Tap “Show all on map” to see them.
Peaks in Tredyffrin Township
Diamond Rock Hill617 ft elevation
DirectionsMount Misery577 ft elevation
DirectionsPicnic areas in Tredyffrin Township
6 picnic areas without a name on the map.
Campgrounds in Tredyffrin Township
Trails & water
7 named trails and 1 lakes & rivers
Named trails
Open to bikes · 1.8 miHorses · 3.9 miUnpaved · 17.5 mi
Horse-Shoe Trail1.0 mi
Mt. Misery Trail0.6 mi
Valley Creek Trail0.5 mi
Mt. Joy Trail0.3 mi
Wolfinger Trail0.2 mi
Old Wilson Rd Path0.2 mi
Cedar Hollow Branch0.2 mi
Lakes & rivers tap for directions
Biking & sports
8.3 miles of bike routes
Bike lanes are often missing from the map in smaller towns, so that number is likely low.
8.3 mi
off-road bike paths
Valley Creek TrailBike route
0.5 miCourts & fields
55Tennis
30Baseball
19Pickleball
18Basketball
9Soccer
6Beach volleyball
4Football
3Equestrian
Includes school and college facilities, which aren’t always open to the public.
History along the way
History →14 places on the National Register, one a National Historic Landmark
The country’s official list of places worth saving (National Park Service). The map also marks 16 historic points from OpenStreetMap: plaques, memorials and old buildings.
Cressbrook FarmBuilding · listed 1972
About itDavid Harvard HouseBuilding · listed 1972
About itWetherby-Hampton-Snyder-Wilson-Erdman Log HouseBuilding · listed 1973
About itStirling, Maj. Gen. Lord, QuartersBuilding · listed 1974
About itLafayette's QuartersBuilding · listed 1974
About itFederal BarnBuilding · listed 1980
About itCramondBuilding · listed 1983
About itGreat Valley MillBuilding · listed 1983
About itStrafford Railroad StationBuilding · listed 1984
About itJoseph Walker HouseBuilding · listed 1987
About itCounty Bridge No. 171Structure · listed 1988
About it2 more on the History page.
When to get out
The best walking months in Tredyffrin Township: 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) | 9.6 | 10.6 | 11.8 | 13.2 | 14.4 | 15.0 | 14.7 | 13.7 | 12.4 | 11.1 | 9.9 | 9.3 |
| High (°F) | 40 | 43 | 51 | 64 | 73 | 82 | 87 | 85 | 78 | 66 | 55 | 45 |
| Rain (in) | 3.4 | 2.9 | 4.2 | 3.8 | 4.0 | 4.4 | 4.8 | 4.5 | 4.6 | 4.2 | 3.3 | 4.2 |
February is the driest month (2.9 in) and July the warmest (highs of 87 °F). 4.8 inches fall in July, the wettest month. Summer highs reach 87 °F, too hot for the outline. The climate in Tredyffrin Township →
Next door
Tredyffrin Township and its neighbors
Tredyffrin Township has the most mapped trails of the 8 towns around it. Tap a town to see its outdoors.
Tredyffrin Township34 miWillistown Township21 miUpper Merion Township21 miSchuylkill Township8.8 miEasttown Township3.5 miPaoli3.2 miKing of Prussia2.4 miBerwyn0.3 mi
| Town | Conserved of land | Trail mi per sq mi | Park acres per 1,000 | Near a park ½ mile | Outdoors |
|---|---|---|---|---|---|
| Tredyffrin Township | 14% | 1.7 | 18 | 91% | A |
| Upper Merion Township | 17% | 1.2 | 16 | 96% | A |
| Easttown Township | 16% | 0.4 | 6 | 71% | B |
| King of Prussia | — not graded: under 1,000 residents or part of its town | ||||
| Berwyn | — not graded: under 1,000 residents or part of its town | ||||
| Willistown Township | 35% | 1.2 | 22 | 80% | A |
| Paoli | — not graded: under 1,000 residents or part of its town | ||||
| Schuylkill Township | 12% | 1.0 | 6 | 72% | B+ |
The four inputs of the Outdoors grade, from the engine; shares are of land, not water.
Questions about parks and trails in Tredyffrin Township
Where can I hike in Tredyffrin Township?
The longest trail networks: George Lorimer Preserve, 3.9 miles; Airdrie Forest Preserve, 2.9 miles; Mill Road Park, 2.6 miles; Cedar Hollow Preserve, 2.3 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
How much of Tredyffrin Township is conserved land?
14% of its land, against a typical 8% for a Pennsylvania town and 4% nationally (PAD-US). Conserved doesn’t always mean open to visitors: easements are usually private land.
Are dogs allowed on Tredyffrin Township’s trails?
George Lorimer Preserve and Airdrie Forest Preserve don’t have dog rules recorded on the map; check the signs at the trailhead.
Where can I bike in Tredyffrin Township?
8.3 miles of bike routes are on the map: 8.3 of off-road paths. Named routes: Valley Creek Trail.
Is there public land near Tredyffrin Township?
33,034 acres of parks and open public land lie inside Tredyffrin Township or within 10 miles of it (PAD-US), 571 of them inside the town line.
How much outdoors does Tredyffrin Township have?
Ahead of 91% of U.S. towns on the Outdoors grade, #121 of 1,037 in Pennsylvania. 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 Tredyffrin Township 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 →