Hagedorn Preserve
Nature preserve
7 acres
Dog rules not recorded
No trailhead mapped yet
Photo: JERRYE & ROY KLOTZ MD · CC BY-SA 3.0A−Outdoors
Outdoors in Glen Gardner
13% of Glen Gardner’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. 13% of Glen Gardner’s land is conserved, about 133 acres. 106 acres are parks and preserves, 55 per 1,000 residents.
Ahead of 75% of U.S. towns. What drives it
Conserved land
13%
133 acres · of 1.5 sq mi of land
Trails
0.0 mi
0.0 per sq mi of land
Park land
106 ac
55 acres per 1,000 residents
Near a park
99%+
of residents within ½ mile
What kind of outdoors town is Glen Gardner?
Read from the map. The page puts what stands out first.
Outdoors grade
How much outdoors does Glen Gardner have?
On conserved land, trails, park land and how close residents live to a park, Glen Gardner is ahead of 75% of U.S. towns. The share of residents near a park holds the grade up; trail miles pull it down.
A−
OutdoorsA character grade: shown, never part of Glen Gardner’s overall grade.
Conserved land13% of the land · typical NJ town 11% · U.S. 4%A−Trails0.0 miles of mapped trail per square mile of land (0 mi) · NJ 0.7 · U.S. 0.4DPark land55 acres of park per 1,000 residents (106 acres) · NJ 25 · U.S. 13A−Parks close to homeVirtually all residents within a half mile of a park · NJ 98% · U.S. 72%A+
All U.S. towns we grade (21,298)Ahead of 75%
LessMore
New Jersey towns conserve more land than most (a typical one, 11%; the U.S., 4%), so Glen Gardner’s 13% is ahead of 55% of New Jersey towns, while its trails per square mile lead 3% of them.
How sure. Graded on any three of the four inputs instead, the letter would range from B 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
Directions go to the nearest trailhead or public parking.
Who protects it
133 conserved acres
13% of Glen Gardner’s land. Who manages Glen Gardner’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
Town or city70 ac
State natural resources30 ac
County30 ac
Other state land7 ac
State Recreation Area · 30 acAgricultural Easement · 30 acLocal Conservation Area · 27 acLocal Resource Management Area · 27 acLocal Park · 8 ac
Good to know
Conserved doesn’t always mean open to visitors. 30 acres are conservation easements, usually private land. The walks above are places people visit.
The biggest protected parcels
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Spruce Run Recreation Area State Recreation Area | State natural resources | 30 | Open |
| Spruce Run Local Conservation Area | Town or city | 27 | Open |
| Glenview Ridge Local Resource Management Area | Town or city | 26 | Open |
| Hagedorn Preserve State Conservation Area | Other state land | 7 | Open |
| Glen Gardner Municipal Park Local Recreation Area | Town or city | 7 | Open |
| Playground & Vfw Memorial Local Park | Town or city | 5 | Open |
| Hunts Field Local Park | Town or city | 3 | Open |
| Glen Gardner Borough Wooded Lot Local Resource Management Area | Town or city | 1 | Open |
| Water Tower Local Other or Unknown | Town or city | 1 | Open |
Things to do
2 places to go in Glen Gardner
Beaches, playgrounds, peaks, falls and more. Pick a kind.
Playgrounds in Glen Gardner
2 playgrounds without a name on the map. Tap “Show all on map” to see them.
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
2Basketball
2Tennis
1Baseball
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).
Glen Gardner Pony Pratt Truss BridgeStructure · listed 1977
About itWhen to get out
The best walking months in Glen Gardner: April to June, August and September
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 | 15.1 | 14.8 | 13.8 | 12.4 | 11.0 | 9.8 | 9.3 |
| High (°F) | 37 | 40 | 49 | 62 | 71 | 79 | 84 | 82 | 76 | 64 | 53 | 42 |
| Rain (in) | 3.6 | 2.8 | 4.0 | 3.9 | 4.1 | 4.6 | 4.9 | 4.8 | 4.6 | 4.4 | 3.5 | 4.4 |
February is the driest month (2.8 in) and July the warmest (highs of 84 °F). 4.9 inches fall in July, the wettest month. The climate in Glen Gardner →
Next door
Glen Gardner 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 |
|---|---|---|---|---|---|
| Glen Gardner | 13% | under 0.1 | 55 | 99%+ | A− |
| Lebanon Township | 31% | 1.2 | 735 | 84% | A+ |
| Bethlehem Township | 32% | 0.5 | 699 | 99% | A+ |
| Hampton | 7% | 0.1 | 50 | 99%+ | A− |
The four inputs of the Outdoors grade, from the engine; shares are of land, not water.
Questions about parks and trails in Glen Gardner
How much of Glen Gardner is conserved land?
13% of its land, against a typical 11% for a New Jersey town and 4% nationally (PAD-US). Conserved doesn’t always mean open to visitors: easements are usually private land.
Are dogs allowed on Glen Gardner’s trails?
Hagedorn Preserve and Veterans Memorial Park don’t have dog rules recorded on the map; check the signs at the trailhead.
Is there public land near Glen Gardner?
37,758 acres of parks and open public land lie inside Glen Gardner or within 10 miles of it (PAD-US), 106 of them inside the town line.
How much outdoors does Glen Gardner have?
Ahead of 75% of U.S. towns on the Outdoors grade. 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 Glen Gardner 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 →