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Fort ConstitutionFort Constitution · Photo: AlexiusHoratius · CC BY-SA 3.0
–Not graded
Outdoors in New Castle

22% of New Castle’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. 22% of New Castle’s land is conserved, about 110 acres. 84 acres are parks and preserves, 101 per 1,000 residents.

Conserved land
22%
110 acres · of 0.8 sq mi of land
Trails
0.9 mi
1.1 per sq mi of land
Park land
84 ac
101 acres per 1,000 residents
Near a park
99%+
of residents within ½ mile
Highest peak
39 ft
Boatswain Hill
Lakes & rivers
2
13 beaches
The map

Conserved land, trails & bike routes

Tap a number to zoom to a park. Tap a layer to hide it.

1
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.

Wentworth-Coolidge Historic Site

Managed by NH Dept of Resources & Econ Dev
37 acres
Dog rules not recorded
No trailhead mapped yet
Who protects it

110 conserved acres

22% of New Castle’s land. Water is left out: New Castle has 0.8 square miles of land and 1.5 of water, so the share counts land only. Who manages New Castle’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.

State natural resources86 ac
Land trusts & nonprofits45 ac
Not recorded1 ac
State Resource Management Area · 50 acConservation Easement · 41 acLocal Other or Unknown · 36 acUnknown Easement · 4 acState Conservation Area · 1 ac
Good to know

Conserved doesn’t always mean open to visitors. 23 acres are conservation easements, usually private land. Public access isn’t recorded for 5 of 9 parcels. The walks above are places people visit.

The biggest protected parcels
Parcel (PAD-US)Managed byAcresPublic access
Wentworth Coolidge Historic Site
State Resource Management Area
State natural resources37Open
Great Island Common
Local Other or Unknown
State natural resources36Unknown
Fort Stark Historic Site
State Resource Management Area
State natural resources12Open
Fort Constitution Historic Site
State Resource Management Area
State natural resources2Open
G.I.S.A / C.B.A.F
State Conservation Area
Not recorded1Unknown
Things to do

20 places to go in New Castle

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

Fishing spots in New Castle
Goat Island Saltwater Fishing Access
Directions
Trails & water

2 lakes & rivers

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
8Tennis
3Basketball
3Beach volleyball
1Baseball

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

History along the way

3 places on the National Register

The country’s official list of places worth saving (National Park Service). The map also marks 5 historic points from OpenStreetMap: plaques, memorials and old buildings.

History →
Fort ConstitutionSite · listed 1973
About it
Portsmouth Harbor LightBuilding · listed 2009
About it
New Castle Congregational ChurchBuilding · listed 2015
About it
When to get out

The best walking months in New Castle: May 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.

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)9.310.511.813.314.615.315.113.912.410.99.69.0
High (°F)343643556575807971604939
Rain (in)3.63.44.44.33.94.23.73.53.94.94.04.5

February is the driest month (3.4 in) and July the warmest (highs of 80 °F). 4.9 inches fall in October, the wettest month. The climate in New Castle →

Next door

New Castle 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
New Castle— not graded: under 1,000 residents or part of its town
Portsmouth13%1.31178%A−
Rye23%1.111755%A

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

Questions about parks and trails in New Castle

Are dogs allowed on New Castle’s trails?

Wentworth-Coolidge Historic Site doesn’t have dog rules recorded on the map; check the signs at the trailhead.

Is there public land near New Castle?

3,999 acres of parks and open public land lie inside New Castle or within 10 miles of it (PAD-US), 88 of them inside the town line.

Trail talk

Conditions, parking and favorite walks from New Castle 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 →