Montgomery Pinetum
Nature preserve
43 acres0.3 mi of trail
Dog rules not recorded
No trailhead mapped yet
Photo: Hayden Soloviev · CC BY 4.0–Not graded
Outdoors in Cos Cob
15% of Cos Cob’s land is conserved, and 98% of residents live within a half mile of a park
15% of Cos Cob’s land is conserved, about 204 acres. 70 acres are parks and preserves, 9.3 per 1,000 residents. 0.7 miles of mapped trail cross Cos Cob, 0.3 per square mile of land.
Conserved land
15%
204 acres · of 2.2 sq mi of land
Trails
0.7 mi
0.3 per sq mi of land
Park land
70 ac
9.3 acres per 1,000 residents
Near a park
98%
of residents within ½ mile
Lakes & rivers
4
2 boat launches
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 Montgomery Pinetum, with 0.3 miles. Directions go to the nearest trailhead or public parking.
Montogomery Park
Nature preserve
42 acres
Dog rules not recorded
No trailhead mapped yet
Bible Street Playground
Park
6 acres0.1 mi of trail
Dog rules not recorded
No trailhead mapped yet
All 11 parks & preserves
Montgomery Pinetum43 acres · 0.3 mi of trail
Bible Street Playground6 acres · 0.1 mi of trail
Strickland Brook Park1 acres · 0.1 mi of trail
DirectionsMontogomery Park42 acres
Loughlin Avenue Park6 acres
DirectionsMianus River Natural Park5 acres
Sachem Nature Preserve4 acres
DirectionsLovelace Preserve3 acres · Greenwich Land Trust
Caldwell Sanctuary2 acres · Greenwich Audubon Society
Mill Pond Park1 acres
DirectionsO'Neil Preserve1 acres · Greenwich Land Trust
Who protects it
204 conserved acres
15% of Cos Cob’s land. Water is left out: Cos Cob has 2.2 square miles of land and 0.1 of water, so the share counts land only. Who manages Cos Cob’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
Town or city14 ac
Land trusts & nonprofits1 ac
Private owners1 ac
Not recorded186 ac
Local Other or Unknown · 138 acPrivate Conservation · 50 acLocal Park · 8 acWatershed Protection Area · 4 acLocal Conservation Area · 1 ac
Good to know
Conserved doesn’t always mean open to visitors. Public access isn’t recorded for 29 of 34 parcels. The walks above are places people visit.
The biggest protected parcels
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Unknown Local Other or Unknown | Not recorded | 94 | Unknown |
| Montogomery Park Local Other or Unknown | Not recorded | 40 | Unknown |
| Montgomery Pinetum Local Other or Unknown | Not recorded | 38 | Unknown |
| Mianus River Natural Park Local Other or Unknown | Not recorded | 8 | Unknown |
| Loughlin Avenue Playground Local Other or Unknown | Town or city | 6 | Open |
| Bible Street Playground Local Park | Town or city | 6 | Open |
| Sachem Nature Preserve Local Other or Unknown | Not recorded | 4 | Unknown |
| Lovelace Private Conservation | Not recorded | 3 | Unknown |
| Cos Cob Mill Pond Area Local Park | Town or city | 1 | Open |
| O'Neil Local Conservation Area | Land trusts & nonprofits | 1 | Open |
1 smaller protected places aren’t shown.
Things to do
5 places to go in Cos Cob
Beaches, playgrounds, peaks, falls and more. Pick a kind.
Playgrounds in Cos Cob
3 playgrounds without a name on the map. Tap “Show all on map” to see them.
Boat launches in Cos Cob
2 boat launches without a name on the map.
Trails & water
4 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
4Pickleball
3Basketball
3Baseball
2Tennis
Includes school and college facilities, which aren’t always open to the public.
When to get out
The best walking months in Cos Cob: 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) | 9.5 | 10.6 | 11.8 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.4 | 11.0 | 9.8 | 9.2 |
| High (°F) | 40 | 41 | 49 | 61 | 71 | 80 | 85 | 83 | 76 | 65 | 54 | 44 |
| Rain (in) | 3.4 | 2.8 | 4.1 | 4.1 | 3.9 | 4.3 | 4.3 | 4.1 | 4.5 | 4.4 | 3.5 | 4.0 |
February is the driest month (2.8 in) and July the warmest (highs of 85 °F). 4.5 inches fall in September, the wettest month. The climate in Cos Cob →
Next door
Cos Cob 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 |
|---|---|---|---|---|---|
| Cos Cob | — not graded: under 1,000 residents or part of its town | ||||
| Riverside | — not graded: under 1,000 residents or part of its town | ||||
| Indian Field | — 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 Cos Cob
Where can I hike in Cos Cob?
The longest trail networks: Montgomery Pinetum, 0.3 miles; Bible Street Playground, 0.1 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
Are dogs allowed on Cos Cob’s trails?
Montgomery Pinetum and Montogomery Park don’t have dog rules recorded on the map; check the signs at the trailhead.
Is there public land near Cos Cob?
13,593 acres of parks and open public land lie inside Cos Cob or within 10 miles of it (PAD-US), 70 of them inside the town line.
Trail talk
Conditions, parking and favorite walks from Cos Cob neighbors.
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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 →