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Old Greenwich Presbyterian Church, Greenwich Township, Warren County, NJ - looking northPhoto: Zeete · CC BY-SA 4.0
AOutdoors
Outdoors in Greenwich Township

23% of Greenwich Township’s land is conserved: 1,558 acres

654 acres are parks and preserves, 119 per 1,000 residents. The biggest trail networks: Thomas Stewart Park (1.1 mi). 90% of residents live within a half mile of a park.

Ahead of 89% of U.S. towns · #208 of 468 in New Jersey. What drives it

Conserved land
23%
1,558 acres · of 10.6 sq mi of land
Trails
3.0 mi
0.3 per sq mi of land
Park land
654 ac
119 acres per 1,000 residents
Near a park
90%
of residents within ½ mile
Bike routes
1.4 mi
1.4 mi paths
Lakes & rivers
1
1 boat launch

What kind of outdoors town is Greenwich Township?

Read from the map. The page puts what stands out first.

Outdoors grade

How much outdoors does Greenwich Township have?

On conserved land, trails, park land and how close residents live to a park, Greenwich Township is ahead of 89% of U.S. towns, #208 of 468 in New Jersey. Conserved land holds the grade up; trail miles pull it down.

A
OutdoorsA character grade: shown, never part of Greenwich Township’s overall grade.
All U.S. towns we grade (21,298)Ahead of 89%
LessMore
New Jersey towns of 2,500+ (468)Ahead of 56%

New Jersey towns conserve more land than most (a typical one, 11%; the U.S., 4%), so Greenwich Township’s 23% is ahead of 75% of New Jersey towns, while its trails per square mile lead 25% of them.

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.

12
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 Thomas Stewart Park, with 1.1 miles. Directions go to the nearest trailhead or public parking.

Thomas Stewart Park

Park
71 acres1.1 mi of trail
Dog rules not recorded
Directionsto the parking lot

Port Warren Park

Managed by Warren County
52 acres
Dog rules not recorded
No trailhead mapped yet
Who protects it

1,558 conserved acres

23% of Greenwich Township’s land. Who manages Greenwich Township’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.

County1,021 ac
Town or city822 ac
Other or Unknown Local Government359 ac
Other state land315 ac
USDA easements (NRCS)215 ac
Land trusts & nonprofits92 ac
State fish & wildlife1 ac
Agricultural Easement · 2,345 acLocal Other or Unknown · 336 acLocal Recreation Area · 123 acLocal Park · 19 acUnknown Easement · 6 ac
Good to know

Conserved doesn’t always mean open to visitors. 1,083 acres are conservation easements, usually private land. Public access isn’t recorded for 2 of 64 parcels. The walks above are places people visit.

The biggest protected parcels
Parcel (PAD-US)Managed byAcresPublic access
Greenwich Township Unknown
Local Other or Unknown
Town or city330Open
Beattys Field
Local Recreation Area
Town or city113Open
Stewartsville School
Local Park
Other or Unknown Local Government14Open
Morris Canal
Local Other or Unknown
Town or city9Open
Municipal Park
Local Park
Not recorded9Open
Stecker Field
Local Recreation Area
Town or city5Open
Municipal Field
Local Recreation Area
Town or city1Open
Municipal Bldg Complex
Local Park
Other or Unknown Local Government1Open
Musconetcong River Wildlife Management Area
State Conservation Area
State fish & wildlife1Open
Things to do

6 places to go in Greenwich Township

Beaches, playgrounds, peaks, falls and more. Pick a kind.

Boat launches in Greenwich Township
Kayak Launch
Directions
Trails & water

1 lakes & rivers

Lakes & rivers tap for directions
Biking & sports

1.4 miles of bike routes

Bike lanes are often missing from the map in smaller towns, so that number is likely low.

1.4 mi
off-road bike paths
Courts & fields
5Baseball
4Tennis
4Soccer
2Basketball
2Softball

Includes school and college facilities, which aren’t always open to the public.

History along the way

2 places on the National Register

The country’s official list of places worth saving (National Park Service).

History →
Kennedy House and MillBuilding · listed 1996
About it
St. James Lutheran Church and CemeteryDistrict · listed 2016
About it
When to get out

The best walking months in Greenwich Township: 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.

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)9.610.611.813.214.415.114.813.812.411.09.89.3
High (°F)384150627280858376655343
Rain (in)3.52.73.83.94.14.65.04.84.54.53.34.2

February is the driest month (2.7 in) and July the warmest (highs of 85 °F). 5.0 inches fall in July, the wettest month. The climate in Greenwich Township →

Next door

Greenwich Township and its neighbors

Tap a town to see its outdoors.

TownConserved
of land
Trail mi
per sq mi
Park acres
per 1,000
Near a park
½ mile
Outdoors
Greenwich Township23%0.311990%A
Lopatcong Township9%0.85398%A
Pohatcong Township43%under 0.119488%A−
Franklin Township25%0.223671%A−

The four inputs of the Outdoors grade, from the engine; shares are of land, not water.

Questions about parks and trails in Greenwich Township

Where can I hike in Greenwich Township?

The longest trail networks: Thomas Stewart Park, 1.1 miles. Each one is on the map above, with directions to the nearest trailhead or parking.

How much of Greenwich Township is conserved land?

23% 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 Greenwich Township’s trails?

Thomas Stewart Park and Port Warren Park don’t have dog rules recorded on the map; check the signs at the trailhead.

Where can I bike in Greenwich Township?

1.4 miles of bike routes are on the map: 1.4 of off-road paths.

Is there public land near Greenwich Township?

29,469 acres of parks and open public land lie inside Greenwich Township or within 10 miles of it (PAD-US), 654 of them inside the town line.

How much outdoors does Greenwich Township have?

Ahead of 89% of U.S. towns on the Outdoors grade, #208 of 468 in New Jersey. 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 Greenwich Township neighbors.

Town Square →
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 →