Lassellsville State Forest
Managed by New York State Department of Environmental Conservation
1,499 acres0.9 mi of trail
Dog rules not recorded
No trailhead mapped yetWebsite ↗
Fort Plain Historic District (Boundary Increase) · Photo: Doug Kerr · CC BY-SA 2.0B+Outdoors
Outdoors in Oppenheim
Oppenheim has 2,200 acres of parks, 1,225 for every 1,000 residents
The biggest trail networks: Lassellsville State Forest (0.9 mi). 9% of Oppenheim’s land is conserved, about 3,074 acres. 28% of residents live within a half mile of a park.
Ahead of 66% of U.S. towns. What drives it
Conserved land
9%
3,074 acres · of 56.1 sq mi of land
Trails
13 mi
0.2 per sq mi of land
Park land
2,200 ac
1,225 acres per 1,000 residents
Near a park
28%
of residents within ½ mile
Highest peak
1,165 ft
Sweet Hill
Lakes & rivers
1
What kind of outdoors town is Oppenheim?
Read from the map. The page puts what stands out first.
Outdoors grade
How much outdoors does Oppenheim have?
On conserved land, trails, park land and how close residents live to a park, Oppenheim is ahead of 66% of U.S. towns. Park acres per resident hold the grade up; the share of residents near a park pulls it down.
B+
OutdoorsA character grade: shown, never part of Oppenheim’s overall grade.
Conserved land9% of the land · typical NY town 5% · U.S. 4%B+Trails0.2 miles of mapped trail per square mile of land (13 mi) · NY 0.4 · U.S. 0.4C+Park land1,225 acres of park per 1,000 residents (2,200 acres) · NY 31 · U.S. 13A+Parks close to home28% of residents within a half mile of a park · NY 70% · U.S. 72%C
All U.S. towns we grade (21,298)Ahead of 66%
LessMore
How sure. Graded on any three of the four inputs instead, the letter would range from B− to A−. 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 Lassellsville State Forest, with 0.9 miles. Directions go to the nearest trailhead or public parking.
Ferris Lake Wild Forest
Managed by New York State Department of Environmental Conservation
347 acres
Dog rules not recorded
No trailhead mapped yetWebsite ↗
Fulton Forest Preserve Detached Parcel
Managed by New York State Department of Environmental Conservation
191 acres
Dog rules not recorded
No trailhead mapped yetWebsite ↗
Who protects it
3,074 conserved acres
9% of Oppenheim’s land. Who manages Oppenheim’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
State conservation2,097 ac
USDA easements (NRCS)348 ac
Private owners272 ac
Land trusts & nonprofits272 ac
Other or Unknown Local Government87 ac
State Conservation Area · 2,041 acConservation Easement · 621 acPrivate Other or Unknown · 272 acLocal Park · 87 acState Recreation Area · 55 ac
Good to know
Conserved doesn’t always mean open to visitors. 619 acres are conservation easements, usually private land. The walks above are places people visit.
The biggest protected parcels
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Lassellsville State Forest State Conservation Area | State conservation | 1,499 | Open |
| Ferris Lake Wild Forest State Conservation Area | State conservation | 349 | Open |
| Private Lands Private Other or Unknown | Private owners | 272 | Closed |
| Fulton Fp Detached Parcel State Conservation Area | State conservation | 193 | Open |
| Schuyler Ingham Park Local Park | Other or Unknown Local Government | 82 | Open |
| Zimmerman Creek Fishing Access State Recreation Area | State conservation | 54 | Open |
| High Falls Park Lands Local Park | Other or Unknown Local Government | 5 | Open |
| North Creek Fishing Access State Recreation Area | State conservation | 1 | Open |
Things to do
5 places to go in Oppenheim
Beaches, playgrounds, peaks, falls and more. Pick a kind.
Fishing spots in Oppenheim
Sprite Creek Fishing Access
DirectionsPeaks in Oppenheim
Sweet Hill1,165 ft elevation
DirectionsGetman Hill1,125 ft elevation
DirectionsTwin Church Hill1,007 ft elevation
DirectionsCampgrounds in Oppenheim
Crystal Grove Diamond Mine & Campground
DirectionsTrails & water
1 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
2Baseball
1Soccer
Includes school and college facilities, which aren’t always open to the public.
History along the way
History →3 places on the National Register
The country’s official list of places worth saving (National Park Service). The map also marks 1 historic points from OpenStreetMap: plaques, memorials and old buildings.
When to get out
The best walking months in Oppenheim: May and 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) | 9.3 | 10.5 | 11.8 | 13.3 | 14.6 | 15.3 | 15.1 | 13.9 | 12.4 | 10.9 | 9.6 | 9.0 |
| High (°F) | 29 | 32 | 41 | 55 | 68 | 76 | 80 | 79 | 72 | 59 | 46 | 35 |
| Rain (in) | 3.3 | 2.8 | 3.3 | 3.8 | 4.0 | 4.8 | 4.6 | 4.8 | 4.0 | 4.4 | 3.4 | 3.9 |
February is the driest month (2.8 in) and July the warmest (highs of 80 °F). 4.8 inches fall in June, the wettest month. The climate in Oppenheim →
Next door
Oppenheim and its neighbors
Tap a town to see its outdoors.
Stratford47 miSalisbury34 miEphratah14 miOppenheim13 miManheim4.7 miSt. Johnsville3.5 miDolgeville1.0 mi
| Town | Conserved of land | Trail mi per sq mi | Park acres per 1,000 | Near a park ½ mile | Outdoors |
|---|---|---|---|---|---|
| Oppenheim | 9% | 0.2 | 1,225 | 28% | B+ |
| Manheim | under 1% | 0.2 | 4 | 67% | C− |
| Salisbury | 46% | 0.3 | 16,380 | 38% | A− |
| St. Johnsville | 3% | 0.2 | 33 | 79% | B |
| Dolgeville | 8% | 0.5 | 49 | 98% | A |
| Stratford | — not graded: under 1,000 residents or part of its town | ||||
| Ephratah | 18% | 0.3 | 1,389 | 25% | B+ |
The four inputs of the Outdoors grade, from the engine; shares are of land, not water.
Questions about parks and trails in Oppenheim
Where can I hike in Oppenheim?
The longest trail networks: Lassellsville State Forest, 0.9 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
How much of Oppenheim is conserved land?
9% of its land, against a typical 5% for a New York town and 4% nationally (PAD-US). Conserved doesn’t always mean open to visitors: easements are usually private land.
Are dogs allowed on Oppenheim’s trails?
Lassellsville State Forest and Ferris Lake Wild Forest don’t have dog rules recorded on the map; check the signs at the trailhead.
Is there public land near Oppenheim?
92,443 acres of parks and open public land lie inside Oppenheim or within 10 miles of it (PAD-US), 2,200 of them inside the town line.
How much outdoors does Oppenheim have?
Ahead of 66% 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 Oppenheim 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 →