Jordan River Preserve
Managed by Frenchman Bay Conservancy
195 acres0.1 mi of trail
Dog rules not recorded
Directionsto the parking lot
Photo: Billy Hathorn · CC BY-SA 3.0C+Outdoors
Outdoors in Trenton
Trenton has 103 acres of parks, 64 for every 1,000 residents
2.9 miles of mapped trail cross Trenton, 0.2 per square mile of land. 4% of Trenton’s land is conserved, about 460 acres.
Ahead of 40% of U.S. towns. What drives it
Conserved land
4%
460 acres · of 18.2 sq mi of land
Trails
2.9 mi
0.2 per sq mi of land
Park land
103 ac
64 acres per 1,000 residents
Near a park
under 1%
of residents within ½ mile
Bike routes
3.0 mi
Outdoors grade
How much outdoors does Trenton have?
On conserved land, trails, park land and how close residents live to a park, Trenton is ahead of 40% of U.S. towns. Park acres per resident hold the grade up; the share of residents near a park pulls it down.
C+
OutdoorsA character grade: shown, never part of Trenton’s overall grade.
Conserved land4% of the land · typical ME town 6% · U.S. 4%BTrails0.2 miles of mapped trail per square mile of land (3 mi) · ME 0.7 · U.S. 0.4C+Park land64 acres of park per 1,000 residents (103 acres) · ME 15 · U.S. 13A−Parks close to home0% of residents within a half mile of a park · ME 30% · U.S. 72%D−
All U.S. towns we grade (21,298)Ahead of 40%
LessMore
Water is 36% of Trenton’s area (10 of 28 square miles), so every share here is of land; over land and water together, the conserved share would read 3%.
How sure. Graded on any three of the four inputs instead, the letter would range from C− to B. 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 Jordan River Preserve, with 0.1 miles. Directions go to the nearest trailhead or public parking.
Acadia National Park
Managed by National Park Service
103 acres
Dogs usually limited
Directionsto the parking lot
Who protects it
460 conserved acres
4% of Trenton’s land. Water is left out: Trenton has 18.2 square miles of land and 10.2 of water, so the share counts land only. Who manages Trenton’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
Land trusts & nonprofits661 ac
National Park Service103 ac
Regional agency26 ac
Not recorded27 ac
Unknown Easement · 215 acConservation Easement · 215 acState Conservation Area · 116 acPrivate Conservation · 115 acNational Park · 103 ac
Good to know
Conserved doesn’t always mean open to visitors. 215 acres are conservation easements, usually private land. Public access isn’t recorded for 4 of 7 parcels. The walks above are places people visit.
The biggest protected parcels
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| IBP - Alley Island State Conservation Area | Land trusts & nonprofits | 116 | Restricted |
| Alley Island Preserve Private Conservation | Land trusts & nonprofits | 115 | Unknown |
| Acadia National Park National Park | National Park Service | 103 | Open |
| Miscellaneous Municipal Lands Local Other or Unknown | Not recorded | 27 | Unknown |
| Unknown Local Other or Unknown | Regional agency | 26 | Unknown |
Things to do
4 places to go in Trenton
Beaches, playgrounds, peaks, falls and more. Pick a kind.
Public pools in Trenton
Pool
DirectionsBoat launches in Trenton
1 boat launch without a name on the map. Tap “Show all on map” to see it.
Scenic views in Trenton
1 scenic view without a name on the map.
Picnic areas in Trenton
Thompson Island Picnic AreaIn Acadia National Park
DirectionsTrails & water
3 named trails
Named trails
Unpaved · 1.9 mi
Trenton Bog1.8 mi
Fire Lane 2240.1 mi
Bog path0.1 mi
Biking & sports
3.0 miles of bike routes
Bike lanes are often missing from the map in smaller towns, so that number is likely low.
3.0 mi
shoulders & shared lanes
Courts & fields
2Baseball
Includes school and college facilities, which aren’t always open to the public.
When to get out
The best walking months in Trenton: 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 9.2 | 10.4 | 11.8 | 13.4 | 14.8 | 15.5 | 15.2 | 14.0 | 12.4 | 10.9 | 9.5 | 8.8 |
| High (°F) | 30 | 32 | 40 | 52 | 63 | 72 | 78 | 77 | 68 | 56 | 46 | 36 |
| Rain (in) | 4.1 | 3.2 | 4.0 | 4.3 | 3.8 | 4.2 | 3.2 | 3.1 | 3.9 | 5.4 | 4.9 | 5.0 |
August is the driest month (3.1 in) and July the warmest (highs of 78 °F). 5.4 inches fall in October, the wettest month. The climate in Trenton →
Next door
Trenton 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 |
|---|---|---|---|---|---|
| Trenton | 4% | 0.2 | 64 | under 1% | C+ |
| Bar Harbor | 56% | 2.0 | 2,480 | 74% | A+ |
| Lamoine | 4% | 0.2 | 41 | 24% | B− |
| Surry | 4% | 0.5 | 18 | 8% | B− |
| Ellsworth | 10% | 0.4 | 214 | 35% | B+ |
| Mount Desert | 60% | 3.0 | 5,960 | 45% | A+ |
The four inputs of the Outdoors grade, from the engine; shares are of land, not water.
Questions about parks and trails in Trenton
Where can I hike in Trenton?
The longest trail networks: Jordan River Preserve, 0.1 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
How much of Trenton is conserved land?
4% of its land, against a typical 6% for a Maine town and 4% nationally (PAD-US). Conserved doesn’t always mean open to visitors: easements are usually private land.
Are dogs allowed on Trenton’s trails?
Jordan River Preserve and Acadia National Park don’t have dog rules recorded on the map; check the signs at the trailhead.
Where can I bike in Trenton?
3.0 miles of bike routes are on the map: 3.0 of shoulders and shared lanes.
Is there public land near Trenton?
28,222 acres of parks and open public land lie inside Trenton or within 10 miles of it (PAD-US), 103 of them inside the town line.
How much outdoors does Trenton have?
Ahead of 40% 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 Trenton 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 →