Mount Arlington Borough Open Space
Nature preserve
137 acres0.7 mi of trail
White
Dog rules not recorded
Directionsto the parking lot
Photo: Jerrye & Roy Klotz, MD · CC BY-SA 3.0A−Outdoors
Outdoors in Mount Arlington
Virtually every resident lives within a half mile of a park in Mount Arlington
Virtually every resident lives within a half mile of a park. The biggest trail networks: Mount Arlington Borough Open Space (0.7 mi). 199 acres are parks and preserves, 34 per 1,000 residents.
Ahead of 79% of U.S. towns · #284 of 468 in New Jersey. What drives it
Conserved land
2%
34 acres · of 2.1 sq mi of land
Trails
0.9 mi
0.4 per sq mi of land
Park land
199 ac
34 acres per 1,000 residents
Near a park
99%+
of residents within ½ mile
Lakes & rivers
3
1 beach
What kind of outdoors town is Mount Arlington?
Read from the map. The page puts what stands out first.
Outdoors grade
How much outdoors does Mount Arlington have?
On conserved land, trails, park land and how close residents live to a park, Mount Arlington is ahead of 79% of U.S. towns, #284 of 468 in New Jersey. The share of residents near a park holds the grade up; conserved land pulls it down.
A−
OutdoorsA character grade: shown, never part of Mount Arlington’s overall grade.
Conserved land2% of the land · typical NJ town 11% · U.S. 4%B−Trails0.4 miles of mapped trail per square mile of land (1 mi) · NJ 0.7 · U.S. 0.4BPark land34 acres of park per 1,000 residents (199 acres) · NJ 25 · U.S. 13B+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 79%
LessMore
New Jersey towns of 2,500+ (468)Ahead of 39%
New Jersey towns conserve more land than most (a typical one, 11%; the U.S., 4%), so Mount Arlington’s 2% is ahead of 13% of New Jersey towns, while its trails per square mile lead 36% of them.
Water is 24% of Mount Arlington’s area (1 of 3 square miles), so every share here is of land; over land and water together, the conserved share would read 2%.
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
The longest trail network is Mount Arlington Borough Open Space, with 0.7 miles. Directions go to the nearest trailhead or public parking.
Lee's County Park Marina
Managed by Morris County Parks Commission
10 acres
Dog rules not recorded
Directionsto the parking lotWebsite ↗
Berkshire Valley Wildlife Management Area
Managed by State of New Jersey
9 acres0.1 mi of trail
Dog rules not recorded
Directionsto the parking lot
Fireman's Field Park
Park
6 acres
Dog rules not recorded
No trailhead mapped yet
All 5 parks & preserves
Mount Arlington Borough Open Space137 acres · 0.7 mi of trail
DirectionsBerkshire Valley Wildlife Management Area9 acres · 0.1 mi of trail · State of New Jersey
DirectionsLee's County Park Marina10 acres · Morris County Parks Commission
DirectionsFireman's Field Park6 acres
Mount Arlington Public School Park Grounds2 acres
DirectionsWho protects it
34 conserved acres
2% of Mount Arlington’s land. Water is left out: Mount Arlington has 2.1 square miles of land and 0.7 of water, so the share counts land only. Who manages Mount Arlington’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
Town or city27 ac
County13 ac
State fish & wildlife2 ac
Not recorded2 ac
Local Recreation Area · 23 acLocal Park · 11 acLocal Other or Unknown · 6 acState Conservation Area · 3 ac
The biggest protected parcels
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Lees County Park Marina Local Recreation Area | County | 13 | Open |
| Unknown Local Park | Town or city | 9 | Open |
| Mount Arlington Recreation Local Recreation Area | Town or city | 8 | Open |
| Memorial Park Local Other or Unknown | Town or city | 6 | Open |
| Berkshire Valley Wildlife Management Area State Conservation Area | State fish & wildlife | 3 | Open |
| Mount Arlington Borough Beach or Boardwalk Local Recreation Area | Town or city | 2 | Open |
| Beach Dock Local Park | Town or city | 2 | Open |
Things to do
2 places to go in Mount Arlington
Beaches, playgrounds, peaks, falls and more. Pick a kind.
Beaches in Mount Arlington
1 beach without a name on the map. Tap “Show all on map” to see it.
Playgrounds in Mount Arlington
1 playground without a name on the map.
Trails & water
1 named trail and 3 lakes & rivers
Named trails
White0.4 mi
Lakes & rivers tap for directions
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
5Tennis
2Basketball
2Pickleball
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).
Mount Arlington Historic DistrictDistrict · listed 1983
About itWhen to get out
The best walking months in Mount Arlington: April to 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) | 9.5 | 10.6 | 11.8 | 13.3 | 14.4 | 15.1 | 14.8 | 13.8 | 12.4 | 11.0 | 9.8 | 9.2 |
| High (°F) | 35 | 39 | 47 | 60 | 70 | 77 | 82 | 81 | 74 | 62 | 51 | 40 |
| Rain (in) | 3.7 | 2.9 | 4.2 | 4.1 | 4.2 | 4.8 | 4.9 | 4.6 | 4.6 | 4.8 | 3.7 | 4.5 |
February is the driest month (2.9 in) and July the warmest (highs of 82 °F). 4.9 inches fall in July, the wettest month. The climate in Mount Arlington →
Next door
Mount Arlington and its neighbors
Tap a town to see its outdoors.
Jefferson Township83 miRoxbury Township24 miHopatcong20 miLake Hopatcong9.6 miLedgewood5.7 miLanding2.1 miMount Arlington0.9 mi
| Town | Conserved of land | Trail mi per sq mi | Park acres per 1,000 | Near a park ½ mile | Outdoors |
|---|---|---|---|---|---|
| Mount Arlington | 2% | 0.4 | 34 | 99%+ | A− |
| Roxbury Township | 17% | 1.1 | 149 | 99%+ | A+ |
| Landing | — not graded: under 1,000 residents or part of its town | ||||
| Hopatcong | 24% | 1.8 | 77 | 99% | A+ |
| Ledgewood | — not graded: under 1,000 residents or part of its town | ||||
| Lake Hopatcong | — not graded: under 1,000 residents or part of its town | ||||
| Jefferson Township | 52% | 2.1 | 519 | 92% | A+ |
The four inputs of the Outdoors grade, from the engine; shares are of land, not water.
Questions about parks and trails in Mount Arlington
Where can I hike in Mount Arlington?
The longest trail networks: Mount Arlington Borough Open Space, 0.7 miles; Berkshire Valley Wildlife Management Area, 0.1 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
How much of Mount Arlington is conserved land?
2% 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 Mount Arlington’s trails?
Mount Arlington Borough Open Space and Lee's County Park Marina don’t have dog rules recorded on the map; check the signs at the trailhead.
Is there public land near Mount Arlington?
69,312 acres of parks and open public land lie inside Mount Arlington or within 10 miles of it (PAD-US), 199 of them inside the town line.
How much outdoors does Mount Arlington have?
Ahead of 79% of U.S. towns on the Outdoors grade, #284 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 Mount Arlington 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 →