Listed in the order created
- 1 Pennsylvania Canal (West Branch Division)
- 2 Pennsylvania Canal (North Branch Division)
- 3 Beaver and Erie Canal
- 4 Pennsylvania Canal
- 5 Pennsylvania Canal (Susquehanna Division)
- 6 Leiper Canal
- 7 Wiconisco Canal
- 8 Codorus Navigation
- 9 Susquehanna and Tidewater Canal
- 10 Conewago Canal
- 11 Gresham Pioneer Cemetery
- 12 Clatsop Butte
- 13
Columbia Slough - 14 Balch Creek
- 15 Ross Island (Oregon)
- 16 Dyer State Wayside
- 17 Clyde Holliday State Recreation Site
- 18 Augustus Fanno Farmhouse
- 19 Legacy Good Samaritan Hospital & Medical Center
- 20 Ashland Community Hospital (Oregon)
- 21 Lake District Hospital
- 22 Grande Ronde Hospital
- 23 Blue Mountain Hospital
- 24 North Fork John Day River
- 25 South Fork John Day River
- 26 Bridge Creek (John Day River)
- 27 Council Crest Park
- 28 Middle Fork John Day River
- 29 Oak Grove Fork Clackamas River
- 30 East Portland Branch, Public Library of Multnomah County
- 31 Delta Park
- 32 Tryon Creek
- 33 Smith and Bybee Wetlands Natural Area
- 34 Jacob Zimmerman House
- 35 Dairy Creek (Oregon)
- 36 Fairview Creek
- 37 Little Blitzen River
- 38 Kelley Point Park
- 39 Blue Lake Regional Park
- 40 Sumpter Valley Railway Passenger Station
- 41 Ochoco Creek
- 42 North Fork Clackamas River
- 43 City Club of Portland
- 44 Goldwell Open Air Museum
- 45 Course of the Rogue River (Oregon)
- 46 Elk Creek (Rogue River)
- 47 South Fork Rogue River
- 48 Grave Creek (Oregon)
- 49 Socrates Hotchkiss Tryon, Sr.
- 50 Illahe, Oregon
- 51 Marial, Oregon
- 52 Elk Rock Gardens of the Bishop's Close
- 53 Springdale, Oregon
- 54 Frederick Van Voorhies Holman
- 55 Hayden Bridge
- 56 The Air Mail
- 57 Heisey House
- 58 Water Street District
- 59 Pioneer, Nevada
- 60 Memorial Park Site
- 61 Mission Creek
- 62 Champoeg Creek
- 63 Little Sandy River
- 64 Muddy Fork
- 65 Little Zigzag River
- 66 South Fork Bull Run River
- 67 North Fork Bull Run River
- 68 Donald Macleay
- 69 Arlington Club
- 70 Jay Street Bridge
- 71 George Washington Weidler
- 72 South Fork Clackamas River
- 73
Frank Dekum - 74 Cicero Hunt Lewis
- 75 Blazed Alder Creek
- 76 Union Creek Historic District
- 77 Robert Deniston Hume
- 78 Fir Creek (Bull Run River)
- 79 Course of the Willamette River
- 80 Myrtle Creek (Curry County, Oregon)
- 81 Mussel Creek (Curry County, Oregon)
- 82 List of longest streams of Oregon
- 83 Dry River (Crooked River)
- 84 Jordan Creek (Owyhee River)
- 85 Rock Creek (John Day River)
- 86 West Little Owyhee River
- 87 Rock Creek (Catlow Valley)
- 88 Dry Creek (Oregon)
- 89 Crooked Creek (Oregon)
- 90 Willow Creek (Malheur River)
- 91 Cow Creek (Jordan Creek)
- 92 Iwetemlaykin State Heritage Site
- 93 Dog Mountain
- 94 Stephens Creek (Oregon)
- 95 Crystal Springs Creek
- 96 Irving Park (Portland, Oregon)
- 97 Johnson Creek Park
- 98 Tideman Johnson Natural Area
- 99 Oaks Bottom Wildlife Refuge
- 100 Willamette Park
- 101 Butterfly Park
- 102 Sellwood Riverfront Park
- 103 Sellwood Park
- 104 Guild's Lake
- 105 List of longest rivers of the United States (by main stem)
- 106 Williamson Mountain
- 107 Malheur Reservoir
- 108 South Fork Crooked River
- 109 Union Creek (Rogue River)
- 110 Pistol River
- 111 Millicoma River
- 112 East Fork Millicoma River
- 113 West Fork Millicoma River
- 114 South Fork Coos River
- 115 Williams River (Oregon)
- 116 Winchuck River
- 117 Indian Mary Park
- 118 Eugenia Apartments
- 119 Gustave Bartman House
- 120 Franklin W. Farrer House
- 121 William D. Fenton House
- 122 Nettie Krouse Fourplex
- 123 William O. Munsell House
- 124 List of longest rivers of Canada
- 125 Clarno, Oregon
- 126 Twickenham, Oregon
- 127 Genoa Building
- 128 W.S. Salmon House
- 129 Italian Gardeners and Ranchers Association Market Building
- 130 Portland Fire Station No. 23
- 131 Auto Freight Transport Building of Oregon and Washington
- 132 List of longest rivers of Mexico
- 133 Frances Building and Echo Theater
- 134 Waterman, Oregon
- 135 John Day Formation
- 136 Little Luckiamute River
- 137 North Fork Malheur River
- 138 Beulah, Oregon
- 139 Edward Hines Lumber Company
- 140 F.M. Knight Building
- 141 Capt. George Raabe House
- 142 John and Sarah Sheffield House
- 143 Blake McFall Company Building
- 144 George P. Lent Investment Properties
- 145 Louis J. Bader House and Garden
- 146 Henry Kuehle Investment Property
- 147 Portland Fire Station No. 7
- 148 Sellwood Branch YMCA
- 149 St. John's Episcopal Church (Portland, Oregon)
- 150 Lot Whitcomb
- 151 Oregon State Sanitary Authority
- 152 Alfred Webb Investment Properties
- 153 Portland General Electric Company Station "L" Group
- 154 Eliza Barchus
- 155 Portland Railway, Light and Power Sellwood Division Carbarn Office and Clubhouse
- 156 Jacques and Amelia Reinhart House
- 157 Pringle Creek (Willamette River)
- 158 Woahink Lake
- 159 Cleawox Lake
- 160 Tumalo Falls
- 161 Upper Chush Falls
- 162 Yakso Falls
- 163 Antelope Reservoir
- 164 Lava Lake (Oregon)
- 165 Blackwell, Pennsylvania
- 166 Slate Run, Pennsylvania
- 167 Cammal, Pennsylvania
- 168 Jersey Mills, Pennsylvania
- 169 Morris, Pennsylvania
- 170 Antrim, Pennsylvania
- 171 Ansonia, Pennsylvania
- 172 Leetonia, Pennsylvania
- 173 Farrandsville, Pennsylvania
- 174 Woodchute Wilderness
- 175 Mazatzal Wilderness
- 176 Minam Lake
- 177 Breitenbush Lake
- 178 Magone Lake
- 179 Miller Lake (Oregon)
- 180 Mann Lake
- 181 Island Lake (Oregon)
- 182 South Fork McKenzie River
- 183 Clear Lake (Douglas County, Oregon)
- 184 Tenmile Lake (Oregon)
- 185 North Tenmile Lake
- 186 Tenmile Creek (Coos County, Oregon)
- 187 Eel Lake
- 188 Hosmer Lake
- 189 Doris Lake
- 190 Cooper Creek Reservoir
- 191 Hills Creek Reservoir
- 192 John C. Boyle Reservoir
- 193 Hills Creek (Oregon)
- 194 Burnt Bridge Creek
- 195 Ashland Creek
- 196 Granite Creek (Arizona)
- 197 Phoenix Cement Company
- 198 United Verde & Pacific Railway
- 199 Munds Mountain Wilderness
- 200 Juniper Mesa Wilderness
- 201 Hickison Petroglyph Recreation Area
- 202 White River (Arizona)
- 203 Oregon Trail, Wells Springs Segment
- 204 Hardman IOOF Lodge Hall
- 205 The Dalles Military Road
- 206 Joseph Sherar
- 207 Bakeoven, Oregon
- 208 East Side Big Pipe
- 209 Prospect Hotel
- 210 Middle Fork Koyukuk River
- 211 Joshua Green River
- 212 Eagle River (Cook Inlet)
- 213 Eagle River (Favorite Channel)
- 214 Eagle River (Bradfield Canal)
- 215 Kellogg Creek
- 216 Ida Rauh
- 217 Alice Day Pratt
- 218 North Powder River
- 219 Little Malheur River
- 220 Crescent Creek
- 221 Elk City
- 222 Floras Lake
- 223 Thomas Creek (Linn County, Oregon)
- 224 Peoria, Oregon
- 225 West Scio, Oregon
- 226 Foots Creek, Oregon
- 227 Simnasho, Oregon
- 228 Criterion, Oregon
- 229 Dant, Oregon
- 230 Endersby, Oregon
- 231 Nansene, Oregon
- 232 South Junction, Oregon
- 233 North Fork Crooked River
- 234 Seventh Mountain, Oregon
- 235 Joan Benson
- 236 Willamina Creek
- 237 Elizabeth Caruthers
- 238 Roaring River (Clackamas River)
- 239 Stephen Coffin
- 240 Cornell Road
- 241 Bohemia mining district
- 242 Louis Southworth
- 243 North Fork Alsea River
- 244 South Fork Alsea River
- 245 Smith River (McKenzie River)
- 246 East Fork South Fork McKenzie River
- 247 Roaring River (South Fork McKenzie River)
- 248 North Fork Owyhee River
- 249 Middle Fork Owyhee River
- 250 Tanner Creek
- 251 North Fork Siuslaw River
- 252 Pawn, Oregon
- 253 Little River
- 254 Garoutte Creek
- 255 Beaver Creek (Crooked River)
- 256 Hampton Buttes
- 257 Crabtree Creek
- 258 Roaring River (Crabtree Creek)
- 259 Little Pudding River
- 260 East Fork Salmon River (Oregon)
- 261 Treat River
- 262 South Fork Roaring River
- 263 Wildhorse Creek (Alvord Lake)
- 264 South Fork Burnt River
- 265 Little Chetco River
- 266 North Fork Umatilla River
- 267 South Fork Umatilla River
- 268 North Fork Wenaha River
- 269 Lake Fork West Owyhee River
- 270 Little Clatskanie River
- 271 Little Minam River
- 272 Little Willamette River
- 273 Little Yaquina River
- 274 Middle Fork Rogue River
- 275 North Fork Smith River (Umpqua River)
- 276 West Fork Smith River
- 277 Spring River (North Umpqua River)
- 278 North Fork Smith River (California)
- 279 South Fork Malheur River
- 280 South Fork Salmon River (Oregon)
- 281 Spring River (Deschutes River)
- 282 Salmon River (Clackamas County, Oregon)
- 283 Suntex, Oregon
- 284 Harney, Oregon
- 285 Eagle Creek (Powder River)
- 286 Larwood Bridge
- 287 Hoffman Bridge
- 288 Ogle Creek
- 289 South Fork Wenaha River
- 290 Shimanek Bridge
- 291 Gilkey Bridge
- 292 Hannah Bridge
- 293 Chitwood Bridge
- 294 North Fork of the Yachats Bridge
- 295 Grave Creek Bridge
- 296 McKee Bridge
- 297 Oregon Railway and Navigation Company Bridge
- 298 Horse Creek Bridge (McKenzie Bridge, Oregon)
- 299 Drift Creek Bridge
- 300 Drift Creek (Siletz Bay)
- 301 Fisher School Bridge
- 302 Rocky Creek Bridge No. 01089
- 303 Sandy Creek Bridge
- 304 Brumbaugh Bridge
- 305 Big Creek (Lane County, Oregon)
- 306 Cape Creek
- 307 Coyote Creek (Long Tom River)
- 308 Deadwood Creek (Oregon)
- 309 Lake Creek (Siuslaw River)
- 310 Oak Creek (Marys River)
- 311 Fall Creek (Middle Fork Willamette River)
- 312 Unity, Lane County, Oregon
- 313 Fall Creek Lake
- 314 Pringle Falls
- 315 Lost Creek (South Fork Little Butte Creek)
- 316 Myrtle Creek (South Umpqua River)
- 317 Wimer Bridge
- 318 Evans Creek (Rogue River)
- 319 Sandy Creek (Middle Fork Coquille River)
- 320 Middle Fork Coquille River
- 321 East Fork Coquille River
- 322 Elk City Bridge
- 323 Roaring Camp Bridge
- 324 Elk Creek (Umpqua River)
- 325 Ritner Creek
- 326 Little North Santiam River
- 327 Penn, Oregon
- 328 Globe, Oregon
- 329 Bear Creek (Lincoln County, Oregon)
- 330 Rocky Creek (Oregon)
- 331 Mill Creek (Mohawk River)
- 332 Swalley Irrigation District
- 333 Rochester Covered Bridge
- 334 Calapooya Creek
- 335 Cavitt Creek Bridge
- 336 Cavitt Creek
- 337 Neal Lane Bridge
- 338 Pass Creek Bridge
- 339 Pass Creek (Elk Creek)
- 340 Ames Creek (South Santiam River)
- 341 Antelope Creek (Little Butte Creek)
- 342 Lost Creek (Middle Fork Willamette River)
- 343 Emigrant Pass (Oregon)
- 344 Cedar Crossing Bridge
- 345 Stayton–Jordan Bridge
- 346 Horse Creek (McKenzie River)
- 347 Tahkenitch Lake
- 348 Gooseberry, Oregon
- 349 Ella, Oregon
- 350 Valby, Oregon
- 351 Castle Rock, Morrow County, Oregon
- 352 Pine City, Oregon
- 353 Clarke, Oregon
- 354 Rock Creek, Gilliam County, Oregon
- 355 Thirtymile, Oregon
- 356 De Moss Springs, Oregon
- 357 Erskine, Oregon
- 358 Rutledge, Oregon
- 359 Rye Valley, Oregon
- 360 John Willingham
- 361 Cove Orchard, Oregon
- 362 Hemlock, Tillamook County, Oregon
- 363 Bayside Gardens, Oregon
- 364 Watseco, Oregon
- 365 Sandlake, Oregon
- 366 Bagnell Ferry, Oregon
- 367 Plum Trees, Oregon
- 368 Beagle, Oregon
- 369 Rogue Elk, Oregon
- 370 Bitter Lick, Oregon
- 371 Buckhorn Springs, Oregon
- 372 Colestin, Oregon
- 373 Steamboat, Jackson County, Oregon
- 374 Dardanelles, Oregon
- 375 Lincoln, Jackson County, Oregon
- 376 Table Rock, Oregon
- 377 Cascade Gorge, Oregon
- 378Seven Oaks, Oregon
- 379 Four Corners, Jackson County, Oregon
- 380 Henley, Oregon
- 381 Hager, Oregon
- 382 Hildebrand, Oregon
- 383 Yonna, Oregon
- 384 Shevlin, Oregon
- 385 Pelican City, Oregon
- 386 Falcon Heights, Oregon
- 387 Quartz Mountain, Oregon
- 388 Five Corners, Oregon
- 389 Basque, Oregon
- 390 Alston, Oregon
- 391 Delena, Oregon
- 392 Oregon, California and Eastern Railway
- 393 Cottage Grove Lake
- 394 Pine Hollow Reservoir
- 395 Baert Lake
- 396 Delintment Lake
- 397 Buckeye Lake (Oregon)
- 398 Flagstaff Lake (Oregon)
- 399 McGuire Reservoir
- 400 Camp Lake (Oregon)
- 401 Florence Page Jaques
- 402 Camilla Trinchieri
- 403 George Szanto
- 404 Sandy Frances Duncan
- 405 Audrey Roos
- 406 Bernice Carey
- 407 Elinor Denniston
- 408 Hazel Hutchins Wilson
- 409 Margaret Ayer
- 410 Stella K. Hershan
- 411 Dorothy Sherrill
- 412 Marion S. Kellogg
- 413 Mary McMullen
- 414 Helen Reilly
- 415 Joan Bramsch
- 416 Anna Clarke
- 417 Janet Caird
- 418 Elizabeth Sewell
- 419 Elizabeth Fenwick Way
- 420 Suzanne Blanc
- 421 Joan Haverty Kerouac
- 422 Margaret Carr
- 423 Miriam Borgenicht
- 424 Mary Fabilli
- 425 Frances Cowen
- 426 Mary Norbert Körte
- 427 Joanna McClure
- 428 Elizabeth Daly
- 429 Margaret Wetherby Williams
- 430 Eileen Dewhurst
- 431 Janet Dawson
- 432 June Drummond
- 433 Susan Dunlap
- 434 Susanna Calkins
- 435 E. X. Giroux
- 436 Jean Hager
- 437 Sylvia Haymon
- 438 Wendy Hornsby
- 439 Homes on Wheels Alliance
- 440 Jacobs Creek (New Jersey)
- 441 Neskowin Creek
