Few parks or trails are on the map in Devens
The biggest trail networks: Oxbow National Wildlife Refuge (3.1 mi), Mulpus Brook Wildlife Management Areas (0.9 mi). 31% of Devens’ land is conserved, about 1,350 acres. 983 acres are parks and preserves, 571 per 1,000 residents.
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 Oxbow National Wildlife Refuge, with 3.1 miles. Directions go to the nearest trailhead or public parking.
Mulpus Brook Wildlife Management Areas
Mirror Lake
1,350 conserved acres
31% of Devens’ land. Who manages Devens’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
Conserved doesn’t always mean open to visitors. 399 acres are conservation easements, usually private land. The walks above are places people visit.
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Oxbow National Wildlife Refuge National Wildlife Refuge | U.S. Fish and Wildlife Service | 1,686 | Restricted |
| Mulpus Brook Wildlife Management Area State Conservation Area | Not recorded | 106 | Open |
5 places to go in Devens
Beaches, playgrounds, peaks, falls and more. Pick a kind.
1 beach without a name on the map. Tap “Show all on map” to see it.
4 named trails and 8 lakes & rivers
5.1 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.
The best walking months in Devens: 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) | 9.4 | 10.5 | 11.8 | 13.3 | 14.6 | 15.3 | 15.0 | 13.9 | 12.4 | 11.0 | 9.7 | 9.1 |
| High (°F) | 35 | 38 | 46 | 59 | 70 | 79 | 84 | 82 | 75 | 62 | 50 | 40 |
| Rain (in) | 3.4 | 3.3 | 4.2 | 4.2 | 3.7 | 4.2 | 3.7 | 3.6 | 4.0 | 4.7 | 3.7 | 4.4 |
February is the driest month (3.3 in) and July the warmest (highs of 84 °F). 4.7 inches fall in October, the wettest month. The climate in Devens →
Devens 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 |
|---|---|---|---|---|---|
| Devens | — not graded: under 1,000 residents or part of its town | ||||
| Shirley | 28% | 1.7 | 390 | 95% | A+ |
| Ayer | 16% | 1.8 | 62 | 94% | A+ |
| Harvard | 31% | 3.7 | 659 | 97% | A+ |
| Lancaster | 14% | 1.0 | 253 | 70% | A |
The four inputs of the Outdoors grade, from the engine; shares are of land, not water.
Questions about parks and trails in Devens
Where can I hike in Devens?
The longest trail networks: Oxbow National Wildlife Refuge, 3.1 miles; Mulpus Brook Wildlife Management Areas, 0.9 miles; Mirror Lake, 0.3 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
Are dogs allowed on Devens’ trails?
Oxbow National Wildlife Refuge and Mulpus Brook Wildlife Management Areas don’t have dog rules recorded on the map; check the signs at the trailhead.
Where can I bike in Devens?
5.1 miles of bike routes are on the map: 5.1 of painted or protected lanes.
Is there public land near Devens?
49,300 acres of parks and open public land lie inside Devens or within 10 miles of it (PAD-US), 1,028 of them inside the town line.
Trail talk
Conditions, parking and favorite walks from Devens 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 →