These are the parks thicket knows about in Sullivan — the big ones you already know, and the pocket parks, greenways and trailheads two streets over that you probably do not.
- Acworth Town Forest
- Acworth Town Land
- Annie Duncan State Forest
- Arrowhead Recreation Area
- Ashley Ferry Landing
- Ashuelot River Headwaters Forest
- Ashuelot Wildlife Sanctuary
- Barnes Park
- Ben Mere Park
- Benson Lot
- Broad Street Park
- Brookside Park
- Camp Morgan
- Camp Morgan Town Forest
- Carter Brook Wildlife Management Area
- Cemetery Hill Wildlife Management Area
- Charlestown Town Forest - Halls Pond Lot
- Charlestown Town Forest - Reservoir Lot
- Charlestown Town Forest - Sam’s Hill Lot
- Chase House Inn
- Chase Island Wildlife Management Area
- Claremont Community Garden
- Clark Robinson Memorial Forest
- Coffin Park
- Connecticut River State Forest
- Corbin Covered Bridge Park
- Corbin Park
- Cornish Recreation and Education Area
- Cornish Town Forest
- Cornish Wildlife Management Area
- Cory Taber Park
- Crescent Lake Town Forest
- Dewey Woods
- Diehl Family Forest
- Dodge Brook State Forest
- Donas J. & Margaret Reney Memorial Forest
- East Acworth Marshland
- Eastman Forest
- Eastman Pond Island
- Factory Street Park
- Fall Mountain State Forest
- Farnsworth Hill Forest
- Farnum Lot Trails
- Fisher Lot
- Frank H. Simpson Reserve
- French's Ledges
- Gallop Marsh Wildlife Management Area
- Gile State Forest
- Glover's Ledge
- Gordon Wildlife Management Area
- Grantham Recreation Park
- Grantham Town Forest
- Hames Park
- Hart Island
- Helen Woodruff Smith Bird Sanctuary
- Highland Lake Island
- Hubbard Hill State Forest
- James Crandall Preserve
- Jessie Barton Memorial Forest
- Johnson Easement
- Journey's End (The Bell-Cofield Forest)
- Judkins Farm County Land
- Lacasse Park
- Leavitt Hill Wetland
- Ledge Pond
- Lempster Town Forest
- Little Sugar River Forest County Land
- Long Pond Town Forest
- Marhsall Pond County Land
- McDaniels Marsh Wildlife Management Area
- Meadow Park Recreation Complex
- Michael M. & Claudia Yatsevitch Forest
- Monadnock Park
- Moody Park
- Moulton Trail
- Nathaniel & Ina Thurber Memorial Forest
- Newport Common
- Newport Recreation Complex
- Newport Town Forest
- Newport Water Department Land
- Pat Sawyer Memorial Park
- Patch Park
- Perkins Town Forest
- Pillsbury State Park
- Pillsbury State Park (Lovewell Mountain Tract)
- Pillsbury State Park (Max Isreal Tract)
- Pillsbury State Park Conservation Easement
- Pillsbury-Sunapee Corridor
- Plainfield Sanctuary
- R.H. Webb Forest Preserve
- R.H. Webb Forest Preserve (Dane Lot)
- R.H. Webb Forest Preserve (Harrison Lot)
- R.H. Webb Forest Preserve (V-Oz)
- Ransom Tracey Park
- Riverside Park
- Robert C. Haserlat Memorial Park
- Rowell MacWilliams Woodlot
- Saint-Gaudens National Historical Park
- Sawyer Brook Headwaters
- Sherwood Forest
- Spaulding Wildlife Management Area
- Spencer Lot
- Springfield Town Forest
- Springfield Town Forest
- Springfield Town Forest
- Springfield Town Forest
- Springfield Town Forest
- Stowell Forest County Land
- Sugar River Recreational Trail
- Sullivan Count Farm Land
- Sullivan County Eco Ag Center
- Swan Commons
- Tilton Park
- Townsend Lot
- Tremont Square
- Unity Mountain Forest County Land
- Unity Town Forest
- Unity Town Land
- Up on the Hill Conservation Area
- Veterans Field
- Veterans Park
- Victor Hewes Memorial Field
- Visitor Center Green
- Washington Common
- Washington Town Forest (Back Mountain Lot)
- Washington Town Forest (Barrett Pond Lot)
- Washington Town Forest (Farnsworth Hill Lot)
- Washington Town Forest (Huntley Mountain Lot)
- Washington Town Forest (New Road Lot)
- Washington Town Forest (Nut Hatch Lot)
- Washington Town Forest (Old Meadow Lot)
- Wendell Marsh
- Wendell Marsh Wildlife Management Area
- William B. Ruger, Jr. Wildlife Management Area - North
- William B. Ruger, Jr. Wildlife Management Area - South
- Woods Without Gile