- 114th Avenue Wetlands Natural Area
- 155th Avenue Wetlands Natural Area
- 3-Creeks Natural Area
- 7th Street Natural Area
- Abert Rim Wilderness Study Area
- Adams Wetlands Natural Area
- Agate Beach State Recreation Site
- Agate Desert Preserve
- Agnes Creek Open Space
- Ainsworth State Park
- Alan B. Berg Regional Park
- Alder Ridge Natural Area
- Alder Ridge Open Space
- Aldercreek Estates Tract B
- Aldrich Mountain Wilderness Study Area
- Alfred A Loeb State Park
- Alsea Falls Recreation Site
- Alvord Desert Wilderness Study Area
- Amazon Headwaters Park
- Amberglen Townhouses
- Amberview Park
- Ambleside
- Amilou Park Open Space
- Andrew Reasoner Wildlife Reserve
- Ankeny National Wildlife Refuge
- Arbor Pass
- Arcadia Beach State Recreation Site
- Archie Briggs Canyon Natural Area
- Arnold Creek Natural Area
- Arran Open Space
- Arrow Creek Conservation Easement
- Ascension Drive - West
- Ash Creek Natural Area
- Ashdown Wood Open Space
- Ashland Park at Rock Creek Trail
- Aspen Hollow Preserve
- Aspen Park Property
- Aspen Wetlands Natural Area
- Atfalat'i Prairie
- Atfalati Prairie South
- Audubon Riparian Reserve
- Badger Creek Wilderness
- Baker Creek Canyon
- Baker Creek Woods
- Baker Heaton Confluence
- Bakers Ferry Natural Area
- Bald Hill Farm
- Bald Hill Natural Area
- Bales Wetlands Natural Area
- Baltimore Woods Natural Area
- Bandon Marsh National Wildlife Refuge
- Bandon State Park
- Barton Natural Area
- Basalt Creek Canyon
- Baskett Slough National Wildlife Refuge
- Basque Hills Wilderness Study Area
- Bastendorff Beach County Park
- Battle Mountain Forest State Scenic Corridor
- Bauman Woods Natural Area
- Bayberrry Heights Open Space
- Beacon Hill Wetlands Natural Area
- Bear Hollow County Park
- Bear Valley National Wildlife Refuge
- Beaver & Parrot Creeks Confluence
- Beaver Dam Creek Wilderness Study Area
- Beaverton Creek Greenway
- Beaverton Creek Wetlands Natural Area
- Beazell Memorial Forest
- Beebe Woods
- Beef Bend Natural Area
- Beekman Woods
- Beggars-Tick Wildlife Refuge
- Benson State Recreation Area
- Bertelsen Nature Park
- Beth Ryan Nature Reserve
- Bethany Wetlands Natural Area
- Beverly Beach State Park
- Big Alvord Creek Area of Critical Environmental Concern
- Big Four Corners Natural Area
- Black Canyon Wilderness
- Blitzen River Wilderness Study Area
- BLM Criterion Tract
- Blue Basin
- Blue Canyon Wilderness Study Area
- Blue Heron Park
- Blue Mountain Forest State Scenic Corridor
- Blue Pointe Open Space
- Bob Straub State Park
- Boeckman Creek Natural Area
- Boiler Bay Marine Research Area
- Bonneville State Scenic Corridor
- Bonnie Lure State Recreation Area
- Borax Lake Preserve
- Boulder Creek Wilderness
- Bowden Hills Wilderness Study Area
- Bowers Rock State Park
- Brandis Natural Area
- Brewer Spruce Instant Study Area
- Brian Booth State Park
- Briar Creek Way
- Bridal Veil Falls State Scenic Viewpoint
- Bridge Creek Wilderness
- Bridge Creek Wilderness Study Area
- Brock Property
- Bronson Creek Greenway
- Bronson Creek Park
- Brookhaven Woods Natural Area
- Brookside Estates
- Brookside Wetlands Natural Area
- Brookview Wetlands Nautral Area
- Brookwood at Rock Creek Trail
- Brookwood Passage
- Brown Natural Area
- Bruce Starker Arts Park & Natural Area
- Bryant Woods Park
- Bull of the Woods Wilderness
- Bull Run Watershed Management Unit
- Bullards Beach State Park
- Burlington Bottoms
- Burlington Creek Forest
- Burton Wetlands Natural Area
- Butternut Creek Greenway
- Buttes Natural Area
- C.E. Mason Wetlands Natural Area
- Cach Nature Park
- Camassia Natural Area
- Camp Creek Wilderness Study Area
- Camp Polk Meadow Preserve
- Canal Acres Natural Area
- Canemah Bluff Nature Park
- Cape Arago State Park
- Cape Blanco State Park
- Cape Falcon Marine Reserve
- Cape Falcon Shoreside Marine Protected Area
- Cape Falcon West Marine Protected Area
- Cape Kiwanda Marine Garden
- Cape Kiwanda State Natural Area
- Cape Lookou Marine Conservation Area
- Cape Lookout State Park
- Cape Meares National Wildlife Refuge
- Cape Meares State Scenic Viewpoint
- Cape Perpetua Marine Reserve
- Cape Perpetua North Marine Protected Area
- Cape Perpetua Seabird Protection Area
- Cape Perpetua Southeast Marine Protected Area
- Cape Perpetua Special Interest Area
- Cape Sebastian State Scenic Corridor
- Capstone
- Carl G. Washburne Memorial State Park
- Carpenter Creek North
- Carpenter Creek South
- Carriage Way Open Space
- Cascade Head Marine Reserve
- Cascade Head North Marine Protected Area
- Cascade Head Preserve
- Cascade Head Scenic Research Area
- Cascade Head South Marine Protected Area
- Cascade Head West Marine Protected Area
- Cascade-Siskiyou National Monument
- Cascadia State Park
- Castle Rock Wilderness Study Area
- Cathedral Hills
- Catherine Creek State Park
- Catkin Marsh Natural Area
- Cazadero Natural Area
- Cazdero North
- Cedar Grove Botanical Area
- Cedar Mill Creek Greenway
- Cedar Mill Preserve
- Cedar Mill Woods Natural Area
- Cedar Mountain Wilderness Study Area
- Cedars Wetlands Natural Area
- Center Street Park Addition
- Center Street Wetlands
- Chailand Heights Open Space
- Champoeg State Heritage Area
- Chapman Point Marine Garden
- Chehalem Ridge Nature Park
- Chehalem West Conservation Easement
- Chiefain Dakota Greenway
- Chinquapin Bluffs
- Chinquapin Bluffs West
- Chip Ross Park
- Cinder Cone Natural Area
- Clackamas Bluff
- Clackamas Wilderness
- Claggett Creek Natural Area
- Clarks Butte Wilderness Study Area
- Clatsop State Forest
- Clay Myers State Natural Area at Whalen Island
- Clear Creek Canyon Natural Area
- Clear Creek North Natural Area
- Clemens County Park
- Clyde Holliday State Recreation Site
- Coalca Landing Willamette River Greenway
- Cobb Farm Open Space
- Coffee Creek Wetlands
- Cold Springs National Wildlife Refuge
- Collins Sanctuary
- Colony Creek Greenway
- Columbia Shoreline
- Columbia Slough Natural Area
- Columbia Slough Regional Water Quality Facility
- Cooper Mountain Estates Open Space
- Cooper Mountain Nature Park
- Copper Mountain Property
- Copper Salmon Wilderness
- Cornelius Pass Road Property
- Cornell Natural Area
- Corral Creek Natural Area
- Corvallis Forest
- Coryell Ridge
- Cottonwood Canyon State Park
- Cottonwood Creek Natural Area
- Cottonwood Creek Wilderness Study Area
- Cougar Well Wilderness Study Area
- Coyote Prairie
- Coyote Springs Wildlife Area
- Crabtree Complex Area of Critical Environmental Concern
- Crater Lake National Park
- Creek Park Open Space
- Crestmont Land Trust
- Crissey Field State Recreation Site
- Crooked Creek State Natural Area
- Crosel Creek Conservation Area
- Cross Levee Natural Area
- Crosswater Tract C at Rock Creek Trail
- Crosswater Tract D at Rock Creek Trail
- Crowell Woods Natural Area
- Crown Crest Open Space
- Crown Point State Scenic Corridor
- Cruz Ridge Open Space
- Cummins Creek Wilderness
- Dabney State Recreation Area
- Dalton Point State Recreation Site
- Darlingtonia State Natural Site
- Davids Windsor Wetlands Natural Area
- Dawson at Cornell
- Dawson Creek Property at NE Shute Road
- Dawson Creek Woods
- Days Gulch Botanical Area
- Deardorff Creek Natural Area
- Deerfield Woods Natural Area
- Del Rey Beach State Recreation Site
- Delta Ponds
- Deschutes Canyon-Steelhead Falls Wilderness Study Area
- Deschutes River State Recreation Area
- Devils Garden Lava Bed Wilderness Study Area
- Devils Punchbowl State Natural Area
- Diablo Mountain Wilderness Study Area
- Diamond Craters Outstanding Natural Area
- Diamond Peak Wilderness
- Dimeo
- Douglas-Fir Instant Study Area
- Dover Greenway
- Dragonfly Bend
- Drift Creek Wilderness
- Dry Creek Buttes Wilderness Study Area
- Dry Creek Wilderness Study Area
- Duck Island
- Duck Pond Park
- Dunn Research Forest
- Dwight S. Parr Woods Natural Area
- E. E. Wilson Wildlife Area
- Eagle Cap Wilderness
- Eagle Creek Community Forest
- Eagle Creek Natural Area
- Eagle Creek Open Space
- East Alvord Wilderness Study Area
- East Bliss Butte
- East Council Creek
- East Council Creek CE
- East Kiger Plateau Area of Critical Environmental Concern
- East Lava Field Wilderness Study Area
- Eastgate Natural Area
- Eastgate Woodlands/Whilamut Natural Area
- Ecola Point Marine Conservation Area
- Ecola State Park
- Eight Dollar Mountain Area of Critical Environmental Concern
- Eight Dollar Mountain Botanical Area
- Elizabeth Meadows Wetlands Natural Area
- Elk Rock Island
- Ellen Bergis Nature Reserve
- Elmer Feldenheimer State Natural Area
- Emigrant Springs State Heritage Area
- Emma Jones Natural Area
- Enchantment Glen Tract C
- Ennis Creek Forest
- Enschede Estates
- Erickson Creek Natural Area
- Erin Noble Headwaters Park
- Erratic Rock State Natural Site
- Everett Meadows Open Space
- Fairview Wetlands Scenic Trail
- Fairview Woods Wetlands Park
- Fallatin Open Space
- Fanno Creek Natural Area
- Fanno Creek Trail
- Fern Hill Forest
- Fern Street at 138th Property
- Fernhill Wetlands
- Fifteenmile Creek Wilderness Study Area
- Fir Clearing Creek Confluence
- Fir Groves Area of Critical Environmental Concern
- Firlane Open Space
- Fish Creek Rim Wilderness Study Area
- Fish Eddy Landing
- Fish Hatchery County Park
- Fishing Rock State Recreation Site
- Fitton Green Natural Area
- Floras Lake State Natural Area
- Flyway Wetlands Natural Area
- Fogarty Creek Marine Conservation Area
- Fogarty Creek State Recreation Area
- Foley-Balmer Natural Area
- Forest Creek Open Space
- Forest Dell Natural Area
- Forest Glen Woods Natural Area
- Forest Grove West Zurcher Property
- Forest Heights Open Space
- Forest Park
- Fort Rock Cave Natural Area
- Fort Rock State Natural Area
- Fort Stevens State Park
- Foster Floodplain Natural Area
- Four Craters Lava Bed Wilderness Study Area
- Four Sisters Natural Area
- Frances Estates
- Frances Park Open Space
- Free Orchards Park
- Frenchglen Corral
- Friends of Wildwoods Open Space
- Gaarde Street Greenway
- Gabbert Butte Natural Area
- Gabbert Hill East
- Gales Forest Grove
- Gearhart Mountain Wilderness
- Gearhart Ocean State Park
- George Himes Park
- George W. Joseph State Park
- Georgia Pacific Natural Area
- Gerry Mountain Wilderness Study Area
- Gilbert Ridge Natural Area
- Gladstone Nature Park
- Glen Echo Wetlands
- God's Valley Wildlife Area
- Gold Creek Wilderness Study Area
- Gold Lake Bog Research Natural Area
- Goose Lake State Recreation Area
- Gotter Prairie
- Government Island State Recreation Area
- Governor Patterson Memorial State Recreation Site
- Grace Johnson Estate
- Graham Oaks Nature Park
- Granada Woods Natural Area
- Grant Butte Wetlands
- Grassy Knob Wilderness
- Gresham Butte Natural Area
- Gresham Woods Natural Area
- Guano Creek Wilderness Study Area
- Guy W. Talbot State Park
- H.B. Van Duzer Forest State Scenic Corridor
- Hackleman Old-Growth Grove
- Hamilton Ridge Park
- Hampton Butte Wilderness Study Area
- Happy Valley Nature Park
- Harbor View Property
- Harris Beach State Park
- Hart Mountain National Antelope Refuge
- Hartwood Hylands Woods Natural Area
- Hat Rock State Park
- Havenwood Estates on Reedville
- Hawk Mountain Wilderness Study Area
- Haystack Rock Marine Garden
- Headwaters (LNCT)
- Heath Lake Wilderness Study Area
- Heceta Head Lighthouse State Scenic Viewpoint
- Hedges Creek Greenway
- Hedges Creek Wetlands
- Hells Canyon National Recreation Area
- Hells Canyon Wilderness
- Herbert Open Space
- Heritage Pine Natural Area
- Heron Pointe Wetland
- Hi-West Greenway
- Hidden Springs Open Space
- High Steens Wilderness Study Area
- Hillshire Woods
- Hillwood
- Historic Columbia River Highway State Trail
- Hiteon Wetlands Natural Area
- Hogan Butte North
- Holcomb Creek
- Home Creek Wilderness Study Area
- Homestead Wilderness Study Area
- Honeycombs Wilderness Study Area
- Hopkins Demonstration Forest
- Horse Rock Ridge RNA
- Howard Buford Recreation Area
- Howell Territorial Park
- Hoyt Arboretum
- Hubert Lee Cain Wetlands Natural Area
- Hull Street Open Space
- Humbug Mountain State Park
- Hyland Woods Natural Area
- Ibach Nature Park
- Indian Creek Natural Area
- Indian Creek Wilderness Study Area
- Indian Ford Meadow Preserve
- Indian John Island
- Intel Aloha Wetlands
- Interstate Tractor Open Space
- Irrigon Wildlife Area
- Ivor Davies Nature Park
- Iwetemlaykin State Heritage Site
- Jackson Bottom Wetlands Preserve
- Jackson Frazier Wetland
- Jacksonville Forest Park
- Jacksonville Woodlands
- James Abele Park Property
- Jensen Natural Area
- Jewell Meadows Wildlife Area
- John B. Yeon State Scenic Corridor
- John Day Fossil Beds - Clarno Unit
- John Day Fossil Beds - Painted Hills Unit
- John Day Fossil Beds National Monument
- Johnson Lake Natural Area
- Jordan Craters Wilderness Study Area
- Jordan Woods Natural Area
- Joseph Creek Wild and Scenic River
- Julia A Henderson Pioneer Park
- Juniper Hills Preserve
- Kaiser Woods Natural Area
- Kalmiopsis Wilderness
- Kehoe Sanctuary
- Kelly Butte Natural Area
- Kemmer View Estates Open Space
- Kenneth Denman Wildlife Area
- Kerr Natural Area
- Killin Wetlands Nature Park
- King Mountain Rock Garden ACEC
- King's Landing Open Space
- Kingfisher Natural Area
- Kings Bend
- Kingston Prairie Preserve
- Klamath Marsh National Wildlife Refuge
- Klamath-Siskiyou Nature Center
- Koberg Beach State Recreation Site
- Koll Center Wetlands Natural Area
- Koller Wetland Park
- L.L. Stub Stewart State Park
- La Pine State Park
- Ladd Marsh Wildlife Area
- Lake Selmac County Park
- Lang Forest State Scenic Corridor
- Lang Property
- Larkspur Natural Area
- Laurel Woods Open Space
- Lava Ridge Natural Area
- Lawrence Memorial Grassland Preserve
- Leslie Gulch Area of Critical Environmental Concern
- Lewis and Clark National Historical Park
- Lewis and Clark National Historical Park - Salt Works
- Lewis and Clark National Wildlife Refuge
- Lewis and Clark State Recreation Site
- Lexington Estates
- Lexington Park
- Lilly K. Johnson Woods Natural Area
- Lily Meadows
- Lindsey Creek State Park
- Linnton Park
- Little Blitzen Area of Critical Environmental Concern
- Little Sink Instant Study Area
- Little Wildhorse Lake Area of Critical Environmental Concern
- Little Woodrose Nature Park
- Loll Wildwood Natural Area
- Lookout Butte Wilderness Study Area
- Lost Forest Instant Study Area
- Lowami Hart Woods Natural Area
- Lower Deschutes River (BLM)
- Lower Deschutes Wildlife Area
- Lower Deschutes Wildlife Area - Woosley Tract
- Lower John Day Wilderness Study Area
- Lower Klamath National Wildlife Refuge
- Lower Owyhee Canyon Wilderness Study Area
- Lower Pecan Creek Natural Area
- Lower Powell Butte Floodplain
- Lower Stonehouse Wilderness Study Area
- Lower White River Wilderness
- Luk-wah Prairie
- Madrona Open Space
- Madrona Woods Natural Area
- Madrone Wall Park
- Magill's Conservation Easement
- Magill's Landing Natural Area
- Magness Memorial Tree Farm
- Mahogany Ridge Wilderness Study Area
- Malheur National Forest
- Malheur National Wildlife Refuge
- Malheur River-Bluebucket Creek Wilderness Study Area
- Mandy Park
- Maple Lane Natural Area
- Maplewood Heights Open Space
- Maricara Natural Area
- Mark O. Hatfield Wilderness
- Maroon Ponds
- Marquam Nature Park
- Marquam Trail
- Marshall Park
- Marugg
- Marys Peak Scenic Botanical Special Interest Area
- Marys River Natural Area
- Matrix Hill Woods Natural Area
- Mayer State Park
- McCarthy Creek Forest
- McDonald Research Forest
- McDonald's Ferry Ranch (BLM)
- McDowell Creek County Park
- McGowan Meadow Area of Critical Environmental Concern
- McGraw Creek Wilderness Study Area
- McKay Creek National Wildlife Refuge
- McLoughlin State Natural Area
- MCM South Headwaters
- McNary Property
- McNary Wildlife Nature Area
- Meadow Green Estates Open Space
- Meadowbrook Park
- Meadowlark Prairie
- Memaloose State Park
- Menagerie Wilderness
- Merritt Woods Natural Area
- Mickey Basin Area of Critical Environmental Concern
- Mickey Hot Springs Area of Critical Environmental Concern
- Middle Baker Creek
- Middle Heaton Creek Natural Area
- Middle Santiam Wilderness
- Mill Creek Ridge Preserve
- Mill Creek Wilderness
- Miller Woods Conservation Area
- Millikan Wetlands Natural Area
- Milo McIver State Park
- Minam State Recreation Area
- Minthorn North Natural Area
- Minto County Park
- Minto Island Conservation Area
- Minto-Brown Island Park
- Missouri Bend Recreation Site
- Mitchell Creek Natural Area
- Mohawk RNA
- Molalla Landing Willamette River Greenway
- Molalla River Corridor Recreation Area
- Molalla River State Park
- Monument Rock Wilderness
- Moonshadow Woods Natural Area
- Morningstar Greenway
- Morrison Woods Natural Area
- Moshofsky Woods Natural Area
- Mosier Plateau Preserve
- Mount Hood National Forest
- Mount Hood National Recreation Area
- Mount Hood Wilderness
- Mount Jefferson Wilderness
- Mount Talbert Nature Park
- Mount Thielsen Wilderness
- Mount Washington Wilderness
- Mount Williams Park
- Mountain Lakes Wilderness
- Mt. Baldy Park
- Mt. Ulka Preserve
- Muddy Valley Habitat Reserve
- Mult Foreclosures 1995
- Munson Creek Falls State Natural Site
- Murrayhill Open Space
- Nadaka Nature Park
- Nehalem Bay State Park
- Neptune State Scenic Viewpoint
- Nesika Park
- Nestucca Bay National Wildlife Refuge
- Newberry National Volcanic Monument
- Newell Creek Canyon Nature Park
- Niagara County Park
- Nichol Sanctuary
- Nicholas Acres Park
- Nicolai Woods
- Nike Woods
- Nineteeth Avenue Loop Natural Area
- Noble Woods
- Noble Woods Estates
- Noble Woods Open Space
- Noble Woods Park
- Nolan Mitigation Site
- North Abbey Creek Forest
- North Bank Habitat Management Area
- North Bethany Trail
- North Coffee Lake Creek Wetlands
- North Crawford Street and North Polk Avenue Property
- North Fork Deep Creek Natural Area
- North Fork Deep Creek Natural Area North
- North Fork Deep Creek Natural Area South
- North Fork John Day Wilderness
- North Fork John Day Wilderness - Baldy Unit
- North Fork John Day Wilderness - Greenhorn Unit
- North Fork John Day Wilderness - Tower Unit
- North Fork Umatilla Wilderness
- North Fork Wilderness Study Area
- North Logan Natural Area
- North Newell Creek
- North Pole Ridge Wilderness Study Area
- Northridge Woods Natural Area
- Noyes Natural Area
- Nyberg Creek Greenway
- Nyberg Creek Preserve
- Oak Basin Prairies Area of Critical Environmental Concern
- Oak Creek Preserve
- Oak Hill
- Oaks Bottom Wildlife Refuge
- Oaks Crossing Natural Area
- Oceanside Beach State Recreation Site
- Ochoco Lake State Park
- Olson Property
- Opal Creek Wilderness
- Orchard Summit Open Space
- Oredson-Todd Woods
- Oregon Badlands Wilderness
- Oregon Canyon Wilderness Study Area
- Oregon Caves National Monument
- Oregon Caves National Preserve
- Oregon Dunes National Recreation Area
- Oregon Mountain Botanical Area
- Orejana Canyon Wilderness Study Area
- Osprey Landing
- Oswald West State Park
- Otter Crest State Scenic Viewpoint
- Otter Point State Recreation Site
- Otter Rock Marine Reserve
- Owen's Farm Natural Area
- Owyhee Breaks Wilderness Study Area
- Owyhee River Canyon Wilderness Study Area
- Oxbow Regional Park
- Packsaddle County Park
- Palomino Hills Wilderness Study Area
- Paradise Point State Recreation Site
- Parkside Open Space
- Pats Cabin Wilderness Study Area
- Patterson Street Natural Area
- Peach Cove Fen Natural Area
- Pearlshell Reserve
- Peavy Arboretum
- Pecan Creek Natural Area
- Penstemon Prairie
- Peppertree Wetlands Natural Area
- Pete's Mountain Landing
- Pettijohn Park
- Phillip W. Schneider State Wildlife Area
- Pilot Butte Canal Natural Area
- Pilot Butte State Scenic Viewpoint
- Pine Creek Conservation Area
- Pine Creek Wilderness Study Area
- Pinewood Natural Area
- Pirate Cove Marine Research Area
- Pistol River State Scenic Viewpoint
- Pittock Acres Park
- Pittock Bird Sanctuary
- Popcorn Swale Nature Preserve
- Port Orford Heads State Park
- Port Orford Wetland Interpretive Walkway
- Powell Butte Nature Park
- Power City Wildlife Area
- Preston Meadows
- Priday Ranch
- Prineville Reservoir State Park
- Pueblo Foothills Area of Critical Environmental Concern
- Pueblo Mountains Wilderness Study Area
- Quail Hollow Open Space
- Quamash Prairie
- Quarry Woods Natural Area
- Rainforest Reserve (NCLC)
- Raleighwood Wetlands Natural Area
- Ravine Woods Natural Area
- Red Flat/Hunter Creek Botanical Area
- Red Mountain Wilderness Study Area
- Redfish Rocks Marine Protected Area
- Redfish Rocks Marine Reserve
- Regner Flood Plain
- Renaissance Open Space
- Renaissance Pointe Open Space
- Richardson Creek Natural Area
- Rickreall Ridge Area of Critical Environmental Concern
- Ridgeveiw Open Space
- Riley Ranch Nature Reserve
- Rincon Wilderness Study Area
- Ritner Creek Park
- River Bluff Open Space
- River Island Natural Area
- River View Natural Area
- River's Bend Prairie
- Riverfront Park
- Riverside Property
- Roaring River Wilderness
- Rock Creek at Brookwood
- Rock Creek at Hemlock
- Rock Creek Greenway
- Rock Creek Trail
- Rock Creek Wilderness
- Rock Island Landing
- Rocky Butte Natural Area
- Rocky Creek State Scenic Viewpoint
- Rogue-Umpqua Divide Wilderness
- Rooster Comb Area of Critical Environmental Concern
- Rooster Rock State Park
- Ross Island Natural Area
- Rough and Ready Area of Critical Environmental Concern
- Rough and Ready Botanical Area
- Rough and Ready Preserve
- Rough and Ready State Natural Site
- Row River Nature Park
- Roxie's Wetlands Natural Area
- Saddle Butte Wilderness Study Area
- Saddle Mountain State Natural Area
- Sage Hen Hills Wilderness Study Area
- Sahallie Illahee Park
- Salem Audubon Nature Reserve
- Salmon-Huckleberry Wilderness
- Salty Acres Wetlands
- Samuel H. Boardman State Scenic Corridor
- Sand Dunes Wilderness Study Area
- Sand Hollow Wilderness Study Area
- Sand Lake Habitat Reserve
- Sandy River Delta
- Sandy River Grove Reserve
- Sandy River Natural Area
- Sandy River Park
- Santiam Kingston Hills
- Santiam State Forest
- Sarah Helmick State Recreation Site
- Saum Creek Greenway
- Sauvie Island Wildlife Area
- Scholls Wetlands Natural Area
- Scott Creek Park
- Scott Wetlands Natural Area
- Scouters Mountain Nature Park
- Sea Ranch Park
- Seid Creek Open Space
- Seminole Park
- Seneca Fouts Memorial State Natural Area
- Sequoia Ridge Natural Area
- Serrano Point Area of Critical Environmental Concern
- Seven Devils State Park
- Shadow Creek Wetlands Natural Area
- Shadow Springs
- Shadowbrook
- Shady Peak Open Space
- Shane T. Bemis Nature Park
- Shaniko Greenway
- Sharon Fen Preserve
- Shaughnessey Wetlands Natural Area
- Sheep Gulch Wilderness Study Area
- Sheep Mountain Wilderness Study Area
- Sheepshead Wilderness Study Area
- Shelton Wayside County Park
- Shepperd's Dell State Natural Area
- Sheridan State Scenic Corridor
- Shore Acres State Park
- Siletz Bay National Wildlife Refuge
- Silver Falls State Park
- Simonson Natural Area
- Siskiyou Field Institute - Deer Creek Center
- Siskiyou Mountain Park
- Sisters Rock State Park
- Sitka Sedge State Natural Area
- Siuslaw National Forest
- Sky Lakes Wilderness
- Skye Parkway Open Space
- Slocum Creek Wilderness Study Area
- Smith and Bybee Wetlands Natural Area
- Smith Rock State Park
- Snake Wild and Scenic River
- Soda Mountain Wilderness
- South Beach State Park
- South Eugene Meadows
- South Fork Donner Und Blitzen Wilderness Study Area
- South Fork Wilderness Study Area
- South Fork Willow Creek Area of Critical Environmental Concern
- South Jetty County Park
- South Multnomah Channel Marsh
- South Shore Natural Area
- South Slough National Estuarine Research Reserve
- Southwest Terwilliger Boulevard Parkway
- Southwest Texas Street Wetland
- Spaulding Wilderness Study Area
- Spencer Butte Park
- Sperry Creek Wilderness Study Area
- Spring Basin Wilderness
- Spring Hill Natural Area
- Spring Lake Open Space
- Spring Park Natural Area
- Spring Valley Access State Park
- Springwater Open Space
- Springwater Woods
- Spyglass Ridge Open Space
- Starvation Creek State Park
- Steele Wetlands Natural Area
- Steens Mountain Wilderness
- Stephens Creek Natural Area
- Stephens Creek Nature Park
- Stevens Meadows Natural Area
- Stoddard Open Space
- Stonebriar
- Stonebrook Open Space
- Stonehouse Wilderness Study Area
- Strawberry Mountain Wilderness
- Succor Creek State Natural Area
- Summer Hills Greenway
- Summercrest Woods Natural Area
- Sunny Slope Open Space
- Sunnyside and 117th Property
- Sunrise Heights Open Space
- Sunrise Park
- Sunset Bay State Park
- Sunset Beach State Recreation Site
- Sunset Ridge Nature Reserve
- Sunshine Butte
- Sutton Mountain Wilderness Study Area
- Suzanne Arlie Park
- Swanson Place Open Space
- Swift Shore Open Space
- Swoyer Property
- Table Mountain Wilderness Study Area
- Table Rock Wilderness
- Table Rocks Management Area
- Taylors Creek Wetlands Natural Area
- Tenax Woods Natural Area
- The Cove Palisades State Park
- The Dalles Watershed Management Unit
- The Knoll Open Space
- The White Oak Savanna
- Thirtymile Wilderness Study Area
- Thom Creek Natural Area
- Thornbrook Park
- Thornbrook Woods Natural Area
- Three Arch Rocks National Wildlife Refuge and Wilderness
- Three Mile Prairie County Park
- Three Sisters Wilderness
- Thurston Hills Natural Area
- Tickle Creek Park
- Tideman Johnson Natural Area
- Tillamook Forest Center
- Tillamook State Forest
- Timberhill Natural Area
- Timberland Woods
- Tippit Place Wetlands
- Tokatee Kloochman State Natural Site
- Toll Bridge County Park
- Tom McCall Preserve at Rowena
- Tonquin Scablands
- Towle Butte
- Townsend Woods
- Troon Open Space
- Tryon Creek State Natural Area
- Tsal Luk-wah
- Tualatin Hills Nature Park
- Tualatin River Greenway
- Tualatin River National Wildlife Refuge
- Tualatin River Open Space
- Tum Tum Lake Area of Critical Environmental Concern
- Twelvemile Creek Wilderness Study Area
- Twilight Eagle Sanctuary
- Twin Creeks Open Space
- Uhtoff Sanctuary
- Ukiah-Dale Forest State Scenic Corridor
- Umpqua Lighthouse State Park
- Unity Lake State Recreation Site
- Upper Abernethy
- Upper Chicken Creek
- Upper Holcomb Creek Natural Area
- Upper Johnson Creek
- Upper Leslie Gulch Wilderness Study Area
- Upper Mitchell Creek Natural Area
- Upper West Little Owyhee Wilderness Study Area
- Upper Willamette Valley Margin Area of Critical Environmental Concern
- Vale Greenway
- Valley of the Giants
- Valley View Estates Open Space
- Vanport Wetlands
- Veterans Creek Natural Area
- Vickery County Park
- Victoria Woods Natural Area
- Viento State Park
- Vineyard Mountain Park
- Vinzenz Lausmann Memorial State Natural Area
- Virgina Heights
- Vogel Property
- Wahoo Creek Natural Area
- Wake Robin Wetlands Natural Area
- Walama Restoration Project Site
- Waldo Lake Wilderness
- Walnut Creek Estates
- Wapato Access Greenway
- Wapato Lake National Wildlife Refuge
- Wapato View
- Waud Bluff
- Waud Bluff Trail
- Weber Farm Natural Area
- Wenaha Wild and Scenic River
- West Bliss Butte
- West Council Creek
- West Peak Wilderness Study Area
- Western Juniper Instant Study Area
- Westside Trail
- Westside Trail
- Wetland Park
- Weyerhaeuser McKenzie Natural Area
- Whale Cove Marine Conservation Area
- Whetstone Savanna Preserve
- Whispering Woods Natural Area
- Whitcomb Creek County Park
- White Fox Wetlands Natural Area
- White River Falls State Park
- White River Wildlife Area
- Whychus Canyon Preserve
- Whychus Creek Wild and Scenic River (Scenic Area)
- Whychus Creek Wild and Scenic River (Wild Area)
- Wild Horse Basin Wilderness Study Area
- Wild Iris Ridge Park
- Wild Rogue Wilderness
- Wildcat Canyon Wilderness Study Area
- Wilderness Park
- Wildwood Open Space
- Wildwood Recreation Site
- Wilkes Creek Headwaters Natural Area
- Willamette Confluence Preserve
- Willamette Cove
- Willamette Daisy Meadow
- Willamette Meridian Landing
- Willamette Mission State Park
- Willamette Stone State Heritage Site
- Willamette Wayside Natural Area
- William L. Finley National Wildlife Refuge
- William M. Tugman State Park
- Willow Creek Greenway
- Willow Creek Preserve
- Willow Creek Wilderness Study Area
- Willow Creek Wildlife Area
- Willow Springs Preserve
- Wilson Creek Natural Area
- Winchuck State Recreation Site
- Winter Range Wilderness Study Area
- Witham Hill Natural Park
- Wolf Creek Inn State Heritage Site
- Woodcock Bog RNA (BLM)
- Woodland Hills Open Space
- Woods Memorial Natural Area
- Wyeth State Park
- Wygant State Natural Area
- Yachats Ocean Road State Natural Site
- Yaquina Head Outstanding Natural Area
- Yoakam Point State Park
- York Creek Botanical Area
- Zumwalt Prairie Preserve