Outdoors · Groton

Groton, MA parks, trails & bike paths

About 33% of Groton is conserved land, roughly 7,167 acres. There are about 153 miles of mapped trails, and the biggest networks are in Wharton Plantation (6.6 mi), Rocky Hill Wildlife Sanctuary (5.7 mi), and J. Harry Rich State Forest (5 mi).

Conserved land, trails, parks and bike routes in Groton, measured from OpenStreetMap and USGS data.

At a glance

Groton outdoors

Conserved land
33%
7,167 of 21,489 acres
Trails
153 mi
4.5 mi per sq mi · 94 on conserved land
Parks & preserves
130
629 conserved acres per 1,000 residents
Bike routes
12.7 mi
0.0 mi lanes · 12.7 mi off-road paths

Conserved land is a share of the whole town area. Bike lanes are often missing from the map in smaller towns, so that number is likely low.

Map

Conserved land, trails & bike routes

12345678
Tap a number or a place below to zoom in© OpenStreetMap contributors · USGS PAD-US
Places to walk

Parks & preserves with trails

Ranked by mapped trail miles. Directions go to the nearest marked trailhead or public parking.
1

Wharton Plantation

Nature preserve
678 acres6.6 mi of trail
Burnt Meadow Trail
Dog rules not recorded
DirectionsTo the parking lot
2

Rocky Hill Wildlife Sanctuary

Nature preserve
411 acres5.7 mi of trail
Heronry TrailChestnut Oak Loop TrailRocky Hill TrailOvenbird TrailVernal Pool Trail
No dogsMapped in OpenStreetMap
DirectionsTo Rocky Hill Trail Head Parking Website
3

J. Harry Rich State Forest

Nature preserve
386 acres5 mi of trail
J. Harry Rich TrailOxbow LoopEagle LoopJohn Tinker TrailNashua Riverwalk
Dog rules not recorded
DirectionsTo the parking lot
4

Surrenden Farms

Nature preserve
179 acres3.4 mi of trail
Dog rules not recorded
DirectionsTo the parking lot
5

Shepley Hill

Nature preserve
72 acres2.8 mi of trail
Dog rules not recorded
DirectionsTo Nashua River Rail Trail Parking Website
6

Gamlin Crystal Spring Conservation Area

Nature preserve
125 acres2.5 mi of trail
Gamlin Esker TrailBoulders TrailIndian Rock Trail
Dog rules not recorded
DirectionsTo the parking lot Website
7

Groton Woods Conservation Area

Nature preserve
120 acres2.4 mi of trail
Dog rules not recorded
No trailhead mapped yet
8

Williams Barn and Sørhaug Woods

Nature preserve
96 acres2.4 mi of trail
Chestnut Hill Loop TrailBruce Clements TrailPriest Trail
Dog rules not recorded
No trailhead mapped yet
All 60 parks & preserves
  • Squannacook River Wildlife Management Area159 ac · 2.3 mi trail · Directions
  • Throne Hill121 ac · 2.2 mi trail
  • Skinner Forest113 ac · 2 mi trail · Directions
  • Academy Hill212 ac · 1.9 mi trail · Directions
  • Taisey Conservation Restriction96 ac · 1.9 mi trail · Directions
  • Skitapet Conservation Land58 ac · 1.8 mi trail · Directions
  • Hayes Woods47 ac · 1.3 mi trail · Directions
  • Phebe R Keyes Woods57 ac · 1.2 mi trail
  • Peter E. Bertozzi Conservation Area38 ac · 1.2 mi trail · Directions
  • Fritz and Helen Walker Conservation Area105 ac · 1.1 mi trail · Directions
  • Kemp Woods74 ac · 1.1 mi trail · Directions
  • Fitch-Woods30 ac · 1.1 mi trail
  • Red Line14 ac · 1.1 mi trail · Directions
  • Unkety Brook Wildlife Management Area186 ac · 1 mi trail · Directions
  • West Throne Hill Conservation Land53 ac · 1 mi trail · Directions
  • Bates Land41 ac · 1 mi trail · Directions
  • Mclains Woods Conservation Area33 ac · 1 mi trail · Directions
  • Flavell Crossing Conservation Area107 ac · 0.9 mi trail
  • Baddacook Conservation Land41 ac · 0.9 mi trail
  • Still Meadow31 ac · 0.9 mi trail
  • Groton Hills Conservation Area31 ac · 0.9 mi trail
  • Mason Back 10056 ac · 0.8 mi trail
  • Nipmuc Meadow35 ac · 0.8 mi trail
  • Harrison S. Ripley Forest69 ac · 0.7 mi trail
  • Blackman Field and Woods48 ac · 0.7 mi trail · Directions
  • Priest Family Conservation Area42 ac · 0.7 mi trail
  • Cronin Conservation Area36 ac · 0.7 mi trail
  • Sawtell Conservation Area31 ac · 0.7 mi trail · Directions
  • Longley Estates II Conservation Area43 ac · 0.6 mi trail · Directions
  • Lawrence Land42 ac · 0.6 mi trail
  • Batten Woods31 ac · 0.6 mi trail
  • Farmers And Mechanics Club20 ac · 0.6 mi trail · Directions
  • Sargisson Beach17 ac · 0.6 mi trail
  • Wiewel Conservation Area40 ac · 0.5 mi trail
  • Wattles Pond Conservation Area26 ac · 0.5 mi trail · Directions
  • Lawrence Woods26 ac · 0.5 mi trail
  • Hawtree Conservation Area23 ac · 0.5 mi trail
  • Duck Pond Conservation Area19 ac · 0.5 mi trail · Directions
  • Sabine Memorial Woods12 ac · 0.5 mi trail
  • David Norris Property52 ac · 0.4 mi trail
  • Torrey Woods Conservation Area36 ac · 0.4 mi trail
  • Hurd Property30 ac · 0.4 mi trail · Directions
  • Deerhaven Conservation Restriction22 ac · 0.4 mi trail
  • Johnston Conservation Area16 ac · 0.4 mi trail
  • Northwoods Conservation Area15 ac · 0.4 mi trail
  • Baddacook Woods14 ac · 0.4 mi trail
  • Lawrence Park Conservation Area12 ac · 0.4 mi trail · Directions
  • Longley Estates I Conservation Area21 ac · 0.3 mi trail
  • Eliades Conservation Area14 ac · 0.3 mi trail
  • Hemlock Grove12 ac · 0.3 mi trail · Directions
  • Watson Way Conservation Area5 ac · 0.3 mi trail
  • Gibbet Hill5 ac · 0.3 mi trail · Directions
Who protects the land

7,167 conserved acres

Who manages it, from PAD-US. Approximate, because parcels can overlap.
Town or city
2,737 ac
State fish & wildlife
1,111 ac
State natural resources
1,053 ac
Other state land
676 ac
Land trusts & nonprofits
669 ac
State conservation
549 ac
State parks
546 ac

Conserved doesn't always mean open to visitors. 3,291 acres are conservation easements, which are usually private land. Public access isn't recorded for 12 of 306 parcels. The places listed above are parks and preserves people visit.

Biking & sports

Bike routes, courts & fields

  • Painted or protected bike lanes0.0 mi
  • Off-road bike paths12.7 mi
  • Shoulders & shared lanes0.0 mi

Courts & fields

  • Tennis24
  • Baseball22
  • Soccer9
  • Pickleball8
  • Basketball3
  • Field hockey2
  • Football2

Counts include school and college facilities, which aren't always open to the public.

Next door

Groton and its neighbors

Towns whose outdoors data has been built so far.
TownConservedTrailsParks & preserves
Groton33.4%152.7 mi130
Shirley27.9%27.1 mi38
Pepperell19.9%32.9 mi45
Ayer15%17.8 mi8
Dunstable30%39.5 mi47
Westford23%139.8 mi70
Tyngsborough14.4%26.4 mi19
Trail talk

Conditions & tips from neighbors

No recent posts about Groton's trails yet. Muddy, icy, a bridge out, where to park: a quick post helps the next person.

Sources: trails, parks, preserves, courts and bike lanes © OpenStreetMap contributors (ODbL), map data as of 2026-09-28. Conserved land: USGS Gap Analysis Project, Protected Areas Database of the United States (PAD-US). Measured against the Census town boundary.

How we measure"Trails" are OpenStreetMap paths, bridleways, public tracks and unpaved footways, plus footways inside a park or preserve or on a named trail route. Sidewalks are left out. Areas are counted on a 23.9-meter grid, so overlapping parcels count once. "Conserved" includes conservation easements, which protect land from development but are usually private property. Trailheads are the nearest marked trailhead, public parking lot or information board within about 150 meters of a preserve. Dog rules come from OpenStreetMap when someone has tagged them; otherwise we show what's typical for the land manager, or say the rules aren't recorded.

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Groton

Massachusetts · MA · Middlesex County
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