1
Otter Brook Preserve
Managed by The Nature Conservancy
712 acres1.2 mi of trail
Dogs usually not allowedTypical for Nature Conservancy preserves. Check posted rules
No trailhead mapped yet
Outdoors · Sullivan
Sullivan, NH parks, trails & bike paths
About 29% of Sullivan is conserved land, roughly 3,472 acres. There are about 17 miles of mapped trails, and the biggest networks are in Otter Brook Preserve (1.2 mi), Allison Nims Piper Memorial Forest (1.2 mi), and Olsen Family Forest (0.9 mi).
Conserved land, trails, parks and bike routes in Sullivan, measured from OpenStreetMap and USGS data.
At a glance
Sullivan outdoors
Conserved land
29%
3,472 of 11,908 acres
Trails
17 mi
0.9 mi per sq mi · 6 on conserved land
Parks & preserves
7
named on the map
Bike routes
0.0 mi
0.0 mi lanes · 0.0 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
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.
2
Allison Nims Piper Memorial Forest
Managed by Society for the Protection of New Hampshire Forests
254 acres1.2 mi of trail
Dog rules not recorded
No trailhead mapped yet
3
Olsen Family Forest
Managed by Society for the Protection of New Hampshire Forests
736 acres0.9 mi of trail
Dog rules not recorded
No trailhead mapped yet
4
Winch Trust Town Forest
Managed by Town of Sullivan
112 acres0.5 mi of trail
Dog rules not recorded
DirectionsTo the parking lot
Things to do
Beaches, playgrounds, falls & more
Pick a kind of place for the list, directions, or pins on the map above.
Peaks in Sullivan
Boynton Hill1,736 ft elevation · In Allison Nims Piper Memorial Forest
Frost Hill1,699 ft elevation · In Andorra Forest
Winch Hill1,640 ft elevation
Spaulding Hill1,598 ft elevation
Hubbard Hill1,476 ft elevation
Frost Hill1,312 ft elevation
Nims Hill1,309 ft elevation
Water
Lakes & rivers
Tap a name for directions.
Who protects the land
3,472 conserved acres
Who manages it, from PAD-US. Approximate, because parcels can overlap.
Conserved doesn't always mean open to visitors. 1,663 acres are conservation easements, which are usually private land. Public access isn't recorded for 35 of 35 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 paths0.0 mi
- Shoulders & shared lanes0.0 mi
Courts & fields
- Basketball1
Counts include school and college facilities, which aren't always open to the public.
Public lands
The biggest protected places in Sullivan
From USGS PAD-US: who manages each one and whether visitors are welcome.
Conservation Easement 3,321 acPrivate Conservation 1,692 acLocal Resource Management Area 117 ac
| Place | Managed by | Acres | Public access |
|---|---|---|---|
| Olsen Family ForestPrivate Conservation | Not recorded | 754 | Access unknown |
| Otter Brook PreservePrivate Conservation | Land trusts & nonprofits | 732 | Access unknown |
| Allison Nims Piper Memorial ForestPrivate Conservation | Not recorded | 195 | Access unknown |
| Winch Trust Town ForestLocal Resource Management Area | Not recorded | 117 | Access unknown |
| Otter Brook/Andorra ForestPrivate Conservation | Land trusts & nonprofits | 11 | Access unknown |
Nearby
Sullivan and its neighbors
Towns whose outdoors data has been built so far.
Trail talk
Conditions & tips from neighbors
No recent posts about Sullivan'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 20-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.