- 5 Mile Woods
- Abington Township Bird Sanctuary
- Adams Swamp Preserve
- Airdrie Forest Preserve
- Akron Mennonite Church Nature Preserve
- Alan Seeger Natural Area
- Algerine Swamp Natural Area
- Algerine Wild Area
- Allegheny Aqueduct Historical Park
- Allegheny Front Hawk Watch
- Allegheny Islands State Park
- Allegheny Islands Wilderness
- Allegheny National Fish Hatchery
- Allegheny Portage Railroad National Historic Site
- Alpine Park
- Althouse Arboretum
- Anders Run Natural Area
- Andrew J. Conner Nature Center
- Apollo County Park
- Archibald Johnston Conservation Area
- Ardsley Wildlife Sanctuary
- Armentrout Preserve
- Asaph Wild Area
- Asbury Barn Recreation Center
- Audubon Greenway Conservation Area 1 & 2
- Audubon Greenway Conservation Area 3 & 4
- Austin T. Blakeslee Natural Area
- Awbury Arboretum
- B. Leeroy & Elizabeth Burkhart Preserve
- B. Leroy & Elizabeth Burkhart Preserve
- Babcock Division
- Bald Eagle State Forest
- Bald Mountain Preserve
- Bark Cabin Natural Area
- Barrens to Bald Eagle Wildlife Corridor
- Bauder Tract
- Beadnell Slopes Conservation Area
- Bear Creek Preserve
- Bear Meadows Natural Area
- Bear Run Natural Area
- Beartown Woods Natural Area
- Beechview - Seldom Seen Greenway
- Beechwood Park
- Bell Acres Nature Park
- Bellaire Woods
- Bellewood Preserve
- Beltzville State Park
- Bemus Mill
- Benckini Tract
- Berks Nature - Ephraim Malickson Wildlife Sanctuary (Tekene 2)
- Bethel Green
- Bethlehem Authority Tunkhannock
- Bethlehem Authority Wild Creek
- Big Elk Creek State Park
- Big Flat Laurel Natural Area
- Big Pocono State Park
- Big Spring State Park
- Bilger's Rocks
- Binky Lee Preserve
- Binney and Smith Preserve
- Birdsboro Waters
- Black Ash Natural Area
- Black River Sanctuary
- Blue Marsh Lake Recreation Area
- Bodnarczuk Tract
- Boggs Run Conservation Area
- Bon View Estate Linear Park
- Bossard Nature Area
- Boyd Big Tree Preserve Conservation Area
- Boyer Nature Preserve
- Brandywine Meadows Preserve
- Brenner-Penfield Macungie Mountain Preserve
- Briar Bush Nature Center
- Briar Hill Preserve
- Briarcliff Park
- Brinton Run Preserve
- Brock's Lookout
- Brookside Park
- Brown's Farm Barn
- Browns Hill Preserve
- Browns Woods
- Bruce Lake Natural Area
- Buchanan State Forest
- Buck Hollow Tract
- Buckhorn Natural Area
- Bucktail State Park Natural Area
- Buckwha Creek Preserve
- Buehler Memorial Park
- Buerkle Woodlands Conservation Area - ALT
- Buffalo Preserve
- Burgess Park
- Burns Run Wild Area
- Butler Preserve
- Buttermilk Falls Natural Area
- Byrne Family Preserve
- Cadwalader Tract
- Caledonia State Park
- Cambridge Springs Boat Access
- Camel's Hump Farm
- Camel's Hump Farm Nature Education Center
- Camp Hebron Sanctuary
- Camp Woods
- Canoe Creek State Park
- Carbaugh Run Natural Area
- Catawissa Recreation Area - Weiser State Forest
- Cave Hill Nature Center
- Cedar Hollow Preserve
- Centennial Arboretum
- Chapman State Park
- Charles F. Lewis Natural Area
- Chartiers Greenway
- Chatham Village Greenspace
- Cherry Tree Farms Open Space
- Cherry Valley National Wildlife Refuge
- Chestnut Grove Natural Area
- Chestnut Mountain Nature Preserve
- Cheston Family Preserve at Briar Hill
- Chrome Serpentine Barrens
- Churchill Valley Greenway
- Clarence Schock Memorial Park at Governor Dick
- Clark Island Natural Area
- Clark Nature Preserve
- Clear Creek State Forest
- Clear Creek State Park
- Clear Shade Wild Area
- Climbers Run Nature Center
- Colonel Denning State Park
- Colton Point State Park
- Conklin Run Wilderness Area
- Cook Forest State Park
- Cool Valley Preserve
- Copper Mine Creek Nature Preserve
- Cornelia and Florence Bridge Preserve
- Cornplanter State Forest
- Cornwall Tract
- Cottonwood-Sunnyfield Park
- Coventry Woods Park
- Cowans Gap State Park
- Cranberry Swamp Natural Area
- Crossways Preserve
- Crouse Run Nature Reserve
- Curtis Arboretum
- Cussewago
- Cussewago Island
- Cussewago Meanders
- Cussewago Riffle
- David R. Johnson Natural Area
- de Perrot Woods Nature Preserve
- Dead Man's Hollow Conservation Area
- Delaware State Forest
- Delaware Water Gap National Recreation Area
- Detweiler Run Natural Area
- Devil's Elbow Natural Area
- Devils Hollow Conservation Area
- Diamond Rock Preserve
- Dick & Nancy Eales Preserve at Moosic Mountain
- Disaster’s Edge Environmental Education Center
- Dixon Meadow Reserve
- Dodsworth Run Preserve
- Dorothy Rider Pool Wildlife Sanctuary
- Dry Land Hill Parcel
- Duquesne Heights Greenway
- Dwarfskill Preserve
- Eagles Mere Conservancy
- East Branch Swamp Natural Area
- Edge Hill Woods Wildlife Sanctuary
- Edgewater Meadow Park
- Elk State Forest
- Elk State Park
- Elklick Run Wilderness Area
- Emerald View Park
- Ephrata Mountain Conservation Area
- Ephrata Nature Reserve
- Erie Bluffs State Park
- Erie National Wildlife Refuge
- Evansburg State Park
- Evergreen Park
- Exton Park
- Fairhaven Greenway
- Farm Preserve
- Fern Hollow Conservation Area
- Fern Hollow Nature Center
- Ferncliff Peninsula Natural Area
- Ferncliff Wildlife and Wildflower Preserve
- Fernwood Park
- Ferraro Obulaney Tract
- Fieldstone Farm Tank Creek Preserve
- Fifer's Fields Conservation Area
- Florence Shelly Preserve
- Forbes State Forest
- Forestbrooke Conservation Area
- ForEvergreen Nature Preserve
- Forrest H. Dutlinger Natural Area
- Fort Hunter Conservancy
- Four Mills Nature Reserve
- Fowlers Hollow State Park
- Fox Hill Open Space
- Frances Slocum State Park
- Frank E. Masland, Jr. Natural Area
- Freeman's Island
- French Creek State Park
- Fuller Preserve (Jere Knight Nature Trail)
- Fulshaw Craeg Preserve
- Gall Farm Preserve
- Gallitzin State Forest
- Gardner Spencer Preserve
- Gateway Preserve
- George A. Perley Bird Sanctuary
- George Lorimer Preserve
- George W. Wertz Tract
- Gifford Pinchot State Park
- Girty's Woods
- Glen Run Nature Preserve
- Glenroy Preserve
- Glenwood Park
- Goat Hill Wild Plant Sanctuary
- Goeringer Preserve
- Gouldsboro State Park
- Grace Nature Trail
- Grandview Overlook Park
- Gravel Family Preserve
- Gray's Woods Preserve
- Graystones Preserve
- Great Marsh
- Great Marsh Institute
- Green Hills Preserve
- Green Tree Nature Center
- Greenland Tract - Weiser State Forest
- Gull Point Natural Area
- Hal H. Clark Park
- Haldeman Tract - Weiser State Forest
- Halfway Run Natural Area
- Hamilton Jackson Pocono Park
- Hammersley Wild Area
- Hammonds-Keeley Preserve
- Harmony Hill Nature Area
- Harold G. Fulmer III Nature Preserve
- Harry and Mary Goeringer Preserve
- Harry J. Waite Jr. Nature Area
- Hart's Woods Preserve
- Haugh Family Farm Open Space
- Hawk Mountain Sanctuary
- Hayfield Hollow
- Hays Woods Park
- Hazelwood Greenway
- Hearts Content Scenic Area
- Helen B Katz Natural Area
- Hemlock Sanctuary
- Hemlocks Natural Area
- Henry Botanic Garden
- Henry Lane Park
- Henry's Crossing Preserve
- Hereford Manor Lakes
- Heritage Park
- Hexenkopf Ridge Preserve
- Hickory Creek Wilderness
- Hickory Run State Park
- High Rocks Vista
- Hillman State Park
- Hills Creek State Park
- Holly Pointe Nature Preserve
- Holtwood Nature Preserve
- Honey Brook Tract
- Hoodridge Park
- Hopewell Tract
- Horseshoe Curve National Historic Landmark
- Hoverter and Sholl Box Huckleberry Natural Area
- Hughes Family Preserve
- Hunt Road Conservation Area - ALT
- Ibberson Park
- Idlewild Farm Preserve
- Indian Rock Dam and Reservoir
- Iroquois Park
- Irwin Run Conservation Area
- Jackson Pond Preserve
- Jacobsburg Environmental Education Center
- Jakey Hollow Natural Area
- James C. Nelson Wild Area
- James Overstreet Open Space Preserve
- James Wildlife Preserve Mercyhurst University
- Janet Johnston Housenick and William D. Housenick Memorial Park
- Jarret Nature Center
- Jefferson Tract - Weiser State Forest
- Jenkins Arboretum & Gardens
- Jennings Environmental Education Center
- Jerry Pursell Nature Preserve
- John Heinz National Wildlife Refuge
- John M. Mauser Nature Education Trail System
- Johnson Run Natural Area
- Johnson's Pond Wildlife Park
- Johnstown Flood National Memorial
- Jonas Mountain Nature Preserve
- Joseph E. Ibberson Conservation Area
- Joyce Kilmer Natural Area
- Kane Experimental Forest
- Kane Woods Nature Area
- Keller Reservoir
- Kelly's Run Nature Preserve
- Kelvington Park
- Kenealy Nature Park
- Kenmawr Conservation Area
- Kephart Nature Preserve
- Kerrwood Park
- Kettle Creek Environmental Education Center
- Kettle Creek Gorge Natural Area
- Kettle Creek State Park
- Kettle Creek Wild Area
- Kimberly Run Natural Area
- Kings Gap Environmental Education Center
- Kinzua Bridge State Park
- Kirkwood Preserve
- Kiwanis Natural Area
- Knauf Farm Preserve
- Kooser State Park
- Kurmes Paradise Creek Nature Preserve
- Lacawac Sanctuary
- Lackawanna State Park
- Landis Woods Park
- Laurel Mountain State Park
- Laurel Ridge State Park
- Laurel Summit State Park
- Lebo Red Pine Natural Area
- Lehigh Gap Wildlife Refuge
- Lehigh Gorge State Park
- Lehigh Mountain Park
- Leonard Harrison State Park
- Linbrook Woodlands Conservation Area - ALT
- Linfield Preserve
- Linn Conservancy
- Linn Run State Park
- Little Bushkill Rod & Gun Club
- Little Juniata Natural Area
- Little Martins Preserve
- Little Mud Pond Swamp Natural Area
- Little Pine State Park
- Little Rocky Glen Preserve
- Little Tinicum Island Natural Area
- Locust Lake State Park
- Logue Island
- Long Pond Barrens
- Long Pond Preserve - Heimbach Tract
- Lorimer Park
- Lowber Passive Mine Water Treatment Plant
- Lower Chrome Serpentine Barrens
- Lower Jerry Run Natural Area
- Lower Makefield Open Space
- Lower Tract
- Lowries Run Conservation Area - ALT
- Loyalsock State Forest
- Lupher's Landing
- M. John Johnson Nature Area
- M. K. Goddard/Wykoff Run Natural Area
- Maack Farm
- Manderfield Woodland Preserve
- Maple Tract Preserve
- Marion Brooks Natural Area
- Marple Conservation Area
- Marsh Creek State Park
- Martic Township Park
- Martin Hill Wild Area
- Martins Creek Environmental Preserve Boat Access Area
- Maurice K. Goddard State Park
- McCalls Ferry Nature Preserve
- McConnells Mill State Park
- McCormick Island
- McElhattan Reservoir
- McIntyre Wild Area
- McKaig Nature Preserve
- McKeever Center at Clear Creek State Forest
- McNeilly Park
- Meadowbrook Bird Sanctuary
- Meadowsweet Preserve
- Meadowview Conservation Area
- Meeting of the Pines Natural Area
- Merli-Sarnoski County Park
- Messimer Preserve
- Michaux State Forest
- Middle Creek Wildlife Management Area
- Milford Experimental Forest
- Mill Creek Falls Nature Preserve
- Mill Hill Preservation Area
- Millbrook Marsh Fen
- Millbrook Marsh Nature Center
- Miller Run Natural Area
- Millersville Biological Preserve
- Millport Conservancy
- Milton State Park
- Mocharniuk Meadows
- Monroeville Community Park
- Monroeville Community Park East
- Montage Mountain Wildflower Sanctuary
- Montour Preserve
- Montour Woods Conservation Area
- Moore Greenway
- Moraine State Park
- Morrisville Riverfront Preserve
- Moshannon State Forest
- Mosside Slopes - ALT
- Mount Cydonia Ponds Natural Area
- Mount Davis Natural Area
- Mount Holly Marsh Preserve
- Mount Logan Natural Area
- Mount Penn Preserve
- Mount Wismer Nature Preserve
- Moyer's Meadow Park
- Mt. Bradford Preserve
- Muddy Run Recreation Park
- Musser Scout Reservation
- Nagle Tract
- Nathan's Divided Nature Education Center
- Natural Lands Diabase Preserve (Not Open to Public)
- Natural Lands' Bryn Coed Preserve
- Natural Lands' ChesLen Preserve
- Natural Lands' Crow's Nest Preserve
- Natural Lands' Gwynedd Preserve
- Natural Lands' Hildacy Preserve
- Natural Lands' Mariton Wildlife Sanctuary
- Natural Lands' Meng Preserve
- Natural Lands' Peacedale Preserve
- Natural Lands' Sadsbury Woods Preserve
- Natural Lands' Stone Hills Preserve
- Natural Lands' Stroud Preserve
- Natural Lands' Wawa Preserve
- Natural Lands' Wawa Preserve
- Natural Lands' Willisbrook Preserve
- Nescopeck State Park
- Neversink Mountain Preserve
- Neville Woods Conservation Area
- Nine Mile Run Greenway
- Nockamixon State Park
- Nolde Forest Environmental Education Center
- Northeast Fishery Center
- Nothstein Preserve
- NW Allegheny Conservation Area - ALT
- NW Allegheny Conservation Area - ALT
- NW Allegheny Conservation Area - ALT
- O'Neill Open Space
- Oakcliffe Greenway
- Observatory Hill Hollows Greenway
- Octoraro Creek Nature Preserve
- Ohio Twp Connector Conservation Area - ALT
- Ohiopyle State Park
- Oil Creek State Park
- Okehocking Preserve
- Ontelaunee-Reading Watershed
- Otter Creek Nature Preserve
- Palmerton Fishing & Hunting Association
- Paradise Farm Easement
- Paradise Price Preserve
- Parker Dam State Park
- Pasold Farm Nature Preserve
- Patton Woods Nature Recreation Area
- Peevy Road Open Space
- Peiffer Memorial Arboretum and Nature Preserve
- Penllyn Natural Area
- Pennel Run Natural Area
- Penns Creek Wild Area
- Pennsburg Nature Preserve
- Pennypack Ecological Restoration Trust
- Pequea Nature Preserve
- PFBC Harris Pond
- PFBC Lily Lake
- Pickering Preserve
- Pinchot State Forest
- Pine Creek Gorge Natural Area
- Pine Lake Natural Area
- Pine Ridge Natural Area
- Pine Tree Trail Natural Area
- Pinnacle Overlook Day Use Area
- Pioneer Park
- Piszek Preserve
- Plain Grove Fens Natural Area
- Poe Valley State Park
- Pomeroy McMichaels Creek Nature Preserve
- Porters Lake Hunting & Fishing Club
- Powdermill Nature Reserve
- Presque Isle State Park
- Prince Gallitzin State Park
- Promised Land State Park
- Prompton State Park
- Pyfer Nature Preserve
- Pymatuning State Park
- Pymatuning Waterfowl Area
- Quaker Falls Recreation Area
- Quarry Ridge Preserve
- Quebec Run Wild Area
- Quehanna Wild Area
- Quittapahilla Educational Wetland Preserve
- Rabbit Hollow Wildlife Sanctuary
- Raccoon Creek State Park
- Rager Mountain Division
- Rail Gap Pocono Creek Nature Preserve
- Rannels Kettle Run Nature Preserve
- Ravensburg State Park
- Ravine Park
- Ray’s Woods
- Raystown Lake Recreation Area
- Red Hill Preserve
- Reimert Memorial Bird Haven
- Reynolds Spring Natural Area
- Richard M. Nixon County Park
- Ricketts Glen State Park
- Rider Park
- Ridley Creek State Park
- Ringing Rocks County Park
- Ringing Rocks Park
- River Islands Natural Area
- Roaring Creek Tract - Weiser State Forest
- Roaring Run Natural Area
- Robb Hollow Park
- Robert A. Kinsley Nature Preserve
- Robert B. Gordon Natural Area for Environmental Studies
- Robert Rodale Reserve
- Rock Springs Preserve
- Rocky Ridge Natural Area
- Rose Tree Park
- Rosecrans Bog Natural Area
- Rothrock State Forest
- Rushton Woods Preserve
- Russell P. Letterman Wild Area
- Ruth Zimmerman Natural Area
- Ryerson Station State Park
- Safe Harbor Nature Preserve
- Sahli Nature Park
- Salford Township Open Space
- Salt Springs State Park
- Sanatoga Preserve
- Sandra Yerger Community Recreation Area and Nature Preserve
- Saunders Woods Preserve
- Schuykill Center for Environmental Education
- Schwenk Open Space
- Second Mountain Tract - Weiser State Forest
- Serpentine Preserve
- Seven Fields Nature Preserve
- Sewickley Valley Conservation Area
- Shades Creek Parcel
- Shamrock Woods
- Shaner's Grove
- Shavers Creek Environmental Center
- Shaw Family Nature Preserve
- Sheets Island Archipelago Natural Area
- Shenks Ferry Wildflower Preserve
- Shikellamy State Park
- Shiprock Woods Nature Preserve
- Short Line Hollow - Ross Twp
- Shuman Point Natural Area
- Simon B. Elliott State Park
- Simpson Island
- Sinnemahoning State Park
- Sinoquipe Scout Reservation
- Sizerville State Park
- Skelp Level Park
- Slate Hill Open Space
- Smock's Riverwalk
- Smola Farm Open Space
- Snyder-Middleswarth Natural Area
- Soaring Eagle Wetland
- Souderton - Harleysville Game, Fish and Forestry Association
- South Taylor Environmental Park
- Spalding Conservancy
- Speedwell Forge County Park
- Speedwell Forge Lake Access Area
- Speedwell Forge Nature Preserve
- Spring Creek Canyon
- Spring Creek Nature Park
- Sproul State Forest
- Spruce Swamp Natural Area
- Square Timber Wild Area
- St John's Green
- St. Lawrence Borough Watershed
- Stairway Wild Area
- Stan Yoder Memorial Preserve
- State Game Land 84
- State Game Lands 217
- State Game Lands Number 100
- State Game Lands Number 101
- State Game Lands Number 102
- State Game Lands Number 103
- State Game Lands Number 104
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- Stateline Woods Preserve
- Stauffer Woods Open Space
- Steinman Run
- Stillwater Natural Area
- Stone Valley Forest
- Stone Valley Recreation Area
- Stony Batter Natural Area
- Strawberry Hill Nature Preserve
- Sugar's Bridge Nature Area
- Summers Glen HOA
- Sunset Park
- Susan Groome Harney Preserve
- Susquehanna Riverlands State Park
- Susquehannock State Forest
- Susquehannock State Park
- Sussell Park
- Swatara State Park
- Sweet Root Natural Area
- Swiftwater Forest Preserve
- Sycamore Island
- Tall Timbers Natural Area
- Tamarack Run Natural Area
- Tamarack Swamp Natural Area
- Tannersville Cranberry Bog Preserve
- Tannersville Woods Nature Preserve
- Templin Woods Preserve
- Texter Mountain Nature Preserve
- The Dell
- The Glens Natural Area
- The Hook Natural Area
- The Preserve
- The Saddle
- Theodore A. Parker III Natural Area
- Thickhead Mountain Wild Area
- Thomas Darling Preserve
- Thomas P. Bentley Nature Preserve
- Thompson Drive Park
- Thompson Woods Preserve
- Thorn Run Conservation Area
- Tiadaghton State Forest
- Timoney Preserve
- Tioga State Forest
- Tioga-Hammond Lakes
- Tionesta Scenic and Research Natural Areas
- Tobyhanna State Park
- Todd Nature Reserve
- Tom's Run Conservation Area
- Tomer Reserve
- Torbert Island Natural Area
- Tredyffrin Township Open Space
- Trexler Nature Preserve
- Trough Creek Wild Area
- Trout Run
- Trout Run Conservation Area
- Tucquan Glen Nature Preserve
- Tulpehocken Creek Valley Park System
- Tumbling Run Game Preserve
- Tuscarora State Forest
- Tuscarora State Park
- Twin Hills Trails Park
- Tyler Arboretum
- Tyler State Park
- Upper Hopewell Forge Wildlife Sanctuary
- Upper Paradise Preserve
- Upper Roxborough Reservoir Park
- Valley Creek Preserve
- Valley Park
- Van Buskirk Farm Preserve
- Varden Conservation Area
- Venango Trail
- Vinegar Hollow Conservation Area
- Vosburg Neck State Park
- Walker Park
- Walker's Landing
- Warwick County Park
- Washington Crossing Historic Park
- Waverly Preserve
- Weiser State Forest
- Weiser State Forest - Taylorsville Tract
- Weiser State Forest Penn Forest Tract
- Wells Street Open Space - Trail
- Welsh Mountain Nature Preserve
- Whetzel Preserve
- White Clay Creek Preserve
- White's Mill Open Space
- Whitehall Parkway
- Wildlands Conservancy South Mountain Preserve
- Wiley Preserve
- William Penn State Forest
- Willow Lake Farm
- Wilma Quinlan Nature Preserve
- Wilton Meadows Nature Preserve
- Wiltshire Park
- Windolph Landing Nature Preserve
- Wineberry Open Space
- Wingfield Pines Conservation Area
- Winnie Palmer Nature Reserve
- Wintergreen Gorge
- Wissahickon Waterfowl Preserve
- Wissler Run Nature Preserve
- Wizard Ranch Nature Preserve
- Wolf Creek Narrows Natural Area
- Wolf Run Wild Area
- Woodbourne Forest Preserve
- Woody's Woods
- Worlds End State Park
- Yankee Run Nature Preserve
- Yellow Creek State Park
- Zeigler Nature Preserve
- Ziegler Preserve
- Zimmer Wildlife Sanctuary