All - Architectural style - rustic architecture
| Norris, Madison, and Fishing Bridge Museums |
| North Entrance Road Historic District |
| North Fork Sol Duc Shelter |
| North Mowich Trail Shelter |
| Nothnagle, C. A., Log House |
| Numa Ridge Fire Lookout |
| Nyack Ranger Station Historic District |
| Oak Lodge |
| Obsidian Cliff Kiosk |
| Old St. Nicholas Russian Orthodox Church |
| Oregon Caves Chateau |
| OTO Homestead and Dude Ranch |
| Ox Bow Inn |
| Pahaska Tepee |
| Palmyra Boy Scout Cabin |
| Paradise Historic District |
| Parsons Memorial Lodge |
| Pass Creek Snowshoe Cabin |
| Patton, John, Log Cabin |
| Paulina Lake Guard Station |
| Peaceful Valley Ranch |
| Pelton Creek Shelter |
| Pfarr Log House |
| Pfeiffer-Wheeler American Chestnut Cabin |
| Pioneer Sod House |
| Pokagon State Park |
| Porter, Gene Stratton, Cabin |
| Prairie Homestead |
| Prato Rio |
| Presque Isle Lodge |
| Prickett, Jacob, Jr., Log House |
| Prospect Point Camp |
| Pyramid Guard Station |
| Quartz Lake Patrol Cabin |
| Queen's Laundry Bath House |
| Rabideau Civilian Conservation Corps (CCC) Camp |
| Ramshorn Dude Ranch Lodge |
| Ranch A |
| Randle Ranger Station-Work Center |
| Rand Ranger Station |
| Ranger's Dormitory |
| Redbud Hollow |
| Redfeather Ranger Station |
| Redick Lodge |
| Red Star Lodge and Sawmill |
| Regester Log House |
| Region Nine Training School |
| Rehoboth Church |
| Rhodes Cabin |
| Rice, Silas A., Log House |
| Riddle Ranch |
| Riggs-Hamilton American Legion Post No. 20 |
| Riley Creek Ranger Cabin No. 20 |
| Rising Sun Auto Camp |
| Rogue River Ranch |
| Rohrbaugh Cabin |
| Rose Hill Farm |
| Rosencrans Cabin Historic District |
| Rotary Park Bridge |
| Ruble Church |
| Rustler Park Fire Guard Station |
| Sagamore |
| Saint Mary Ranger Station |
| Scalplock Mountain Fire Lookout |
| Scanlon Farm |
| Schuetz Log Cabin |
| Senior Hall |
| Shakamak State Park Historic District |
| Shaver, Herman and Allene, House |
| Sheffield, Benjamin B., House |
| Shelter House |
| Sherwood Lodge |
| Shriner Peak Fire Lookout |
| Silver Creek Ranger Station |
| Simonds, L.C., Adirondack Cabin |
| Sinnott Memorial Building No. 67 |
| Sites Homestead |
| Skillern, John, House |
| Skyland Camp-Bowman Lake Ranger Station |
| Slana Roadhouse |
| Slaven, Frank, Roadhouse |
| Slide Lake-Otatso Creek Patrol Cabin and Woodshed |
| Smith, Michael, House |
| Smithsonian Institution Shelter |
| Smith-Taylor Cabin |
| Snake River Land Company Residence and Office |
| Snodgrass Tavern (Boundary Increase) |
| Soda Springs Cabin |
| Sod House |
| Soldotna Post Office |
| South Torrington Union Pacific Depot |
| Sperry Chalets |
| Spring Valley Farm |
| Spruce Lodge |
| Sprucewold Lodge |
| Squatter's Cabin |
| Squirrel Meadows Guard Station |
| Stehekin School |
| Stephenson-Campbell House |
| Stewart, Elinore Pruitt, Homestead |
Data from United States Park Service and Wikidata
