Photo: Public domain · Public domainMore than half of Isle au Haut’s land is conserved: 50%
50% of Isle au Haut’s land is conserved, about 4,006 acres. The biggest trail networks: Acadia National Park (19.3 mi), Head Harbor Preserve (0.5 mi). 3,277 acres are parks and preserves, 47,492 per 1,000 residents.
What kind of outdoors town is Isle au Haut?
Read from the map. The page puts what stands out first.
Conserved land, trails & bike routes
Tap a number to zoom to a park. Tap a layer to hide it.
Pick a walk
The longest trail network is Acadia National Park, with 19.3 miles. Directions go to the nearest trailhead or public parking.
Head Harbor Preserve
Eastern Maine Habitat Management Area
Isle au Haut Land Conservation Trust
All 12 parks & preserves
4,006 conserved acres
50% of Isle au Haut’s land. Water is left out: Isle au Haut has 12.5 square miles of land and 100.7 of water, so the share counts land only. Who manages Isle au Haut’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
Conserved doesn’t always mean open to visitors. 541 acres are conservation easements, usually private land. Public access isn’t recorded for 29 of 48 parcels. The walks above are places people visit.
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Acadia National Park National Park | National Park Service | 3,208 | Open |
| Petit Manan National Wildlife Refuge National Wildlife Refuge | U.S. Fish and Wildlife Service | 99 | Restricted |
| Head Harbor Preserve Private Conservation | Land trusts & nonprofits | 73 | Closed |
| Great Spoon Island State Other or Unknown | State fish & wildlife | 44 | Unknown |
| Pell Island Private Conservation | Land trusts & nonprofits | 31 | Closed |
| Alan E. Hutchinson Wildlife Management Area State Conservation Area | State fish & wildlife | 29 | Closed |
| Harbor Island State Other or Unknown | State parks | 9 | Unknown |
| Nathan Islands Private Other or Unknown | Land trusts & nonprofits | 5 | Closed |
| Bill's Island Private Other or Unknown | Land trusts & nonprofits | 5 | Closed |
| Southern Mark Island Unknown | State parks | 5 | Unknown |
5 smaller protected places aren’t shown.
20 places to go in Isle au Haut
Beaches, playgrounds, peaks, falls and more. Pick a kind.
Plus 2 beaches without a name on the map. Tap “Show all on map” to see them.
4 more peaks
13 named trails and 1 lakes & rivers
3 more trails
0.0 miles of bike routes
Bike lanes are often missing from the map in smaller towns, so that number is likely low.
Includes school and college facilities, which aren’t always open to the public.
2 places on the National Register
The country’s official list of places worth saving (National Park Service). The map also marks 2 historic points from OpenStreetMap: plaques, memorials and old buildings.
The best walking months in Isle au Haut: 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 | 14.7 | 15.5 | 15.2 | 14.0 | 12.4 | 10.9 | 9.6 | 8.9 |
| High (°F) | 31 | 33 | 40 | 50 | 60 | 69 | 75 | 74 | 67 | 56 | 46 | 37 |
| Rain (in) | 4.4 | 3.6 | 4.4 | 4.4 | 3.8 | 4.2 | 3.2 | 3.1 | 4.1 | 5.5 | 5.0 | 5.2 |
August is the driest month (3.1 in) and July the warmest (highs of 75 °F). 5.5 inches fall in October, the wettest month. The climate in Isle au Haut →
Isle au Haut and its neighbors
Isle au Haut has the second most mapped trails of the 4 towns around it. 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 |
|---|---|---|---|---|---|
| Isle au Haut | — not graded: under 1,000 residents or part of its town | ||||
| Stonington | 15% | 0.7 | 4 | 11% | B− |
| Vinalhaven | 24% | 1.5 | 193 | 57% | A |
| Swans Island | — not graded: under 1,000 residents or part of its town | ||||
The four inputs of the Outdoors grade, from the engine; shares are of land, not water.
Questions about parks and trails in Isle au Haut
Where can I hike in Isle au Haut?
The longest trail networks: Acadia National Park, 19.3 miles; Head Harbor Preserve, 0.5 miles; Isle au Haut Land Conservation Trust, 0.1 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
Are dogs allowed on Isle au Haut’s trails?
Acadia National Park and Head Harbor Preserve don’t have dog rules recorded on the map; check the signs at the trailhead.
Is there public land near Isle au Haut?
3,950 acres of parks and open public land lie inside Isle au Haut or within 10 miles of it (PAD-US), 3,277 of them inside the town line.
Trail talk
Conditions, parking and favorite walks from Isle au Haut neighbors.
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 →