| Units |
| National Historical Parks | Lewis and Clark (Multi-State) |
| Nez Perce (Multi-State) | |
| National Historic Sites | Fort Vancouver (Multi-State) |
| National Monuments | John Day Fossil Beds |
| Oregon Caves | |
| National Parks | Crater Lake |
| Non-Units |
| National Historic Trails | California (Multi-State) |
| Lewis & Clark (Multi-State) | |
| Nez Perce (Multi-State) | |
| Oregon (Multi-State) | |
| National Scenic Trails | Pacific Crest (Multi-State) |
| National Geographic Trails | Ice Age Floods (Multi-State) |
| Wild & Scenic Rivers | Klamath (Multi-State) |