| White Horse Trail | District of Columbia, DC | 16.2 miles | SW |
| Valley Trail | District of Columbia, DC | 16.3 miles | SW |
| Western Ridge Trail | District of Columbia, DC | 16.8 miles | SW |
| Rock Creek Park Orienteering Course | District of Columbia, DC | 16.9 miles | SW |
| Black Horse Trail | District of Columbia, DC | 16.9 miles | SW |
| Rock Creek Park Bike Trail | District of Columbia, DC | 17.3 miles | SW |
| Swamp Trail | District of Columbia, DC | 18.5 miles | SW |
| Upland Trail | District of Columbia, DC | 18.5 miles | SW |
| Woods Trail | District of Columbia, DC | 18.6 miles | SW |
| Glover-Archbold Trail | District of Columbia, DC | 19.1 miles | SW |
| Chesapeake and Ohio Trail | District of Columbia, DC | 19.4 miles | SW |
| Magnolia Trail | Prince George's, MD | 23.7 miles | SW |
| Loop Trail | Prince George's, MD | 24 miles | SW |
| Bee Oak Trail | Prince George's, MD | 24.1 miles | SW |
| County Line Trail | Charles, MD | 24.3 miles | SW |
| Panhandle Trail | Charles, MD | 24.4 miles | SW |
| Mistletoe Trail | Prince George's, MD | 24.4 miles | SW |
| Hidden Spring Trail | Charles, MD | 24.5 miles | SW |
| Cross Road Trail | Prince George's, MD | 24.5 miles | SW |
| Sunset Trail | Charles, MD | 24.7 miles | SW |
| Wolf Den Trail | Charles, MD | 25.2 miles | SW |
| Left Trail | Charles, MD | 25.2 miles | SW |
| South Trail | Charles, MD | 25.2 miles | SW |
| West Trail | Charles, MD | 25.3 miles | SW |
| Gold Mine Trail | Montgomery, MD | 26.7 miles | NW |
| Center Trail | Fairfax, VA | 27.4 miles | NW |
| Potomac Heritage Trail | Fairfax, VA | 27.7 miles | NW |
| Meadow Trail | Fairfax, VA | 27.7 miles | NW |
| Paw Paw Passage Trail | Fairfax, VA | 27.7 miles | NW |
| Duck Inn Trail | Kent, MD | 28.3 miles | NE |
| Boxes Point Trail | Kent, MD | 28.4 miles | NE |
| Maiden Fair Trail | Charles, MD | 40.7 miles | SW |
| Burnt Pine Trail | Charles, MD | 40.8 miles | SW |
| North Valley Trail | Prince William, VA | 43.2 miles | SW |
| Quantico Falls Trail | Prince William, VA | 43.6 miles | SW |
| Calvin Branch Mine Trail | Prince William, VA | 43.7 miles | SW |
| Birch Bluff Trail | Prince William, VA | 43.8 miles | SW |
| Mary Bird Branch Trail | Prince William, VA | 43.9 miles | SW |
| Hickory Ridge Trail | Prince William, VA | 43.9 miles | SW |
| The Crossing Trail | Prince William, VA | 44 miles | SW |
| Laurel Trail Loop | Prince William, VA | 44 miles | SW |
| Pine Grove Forest Trail | Prince William, VA | 44.3 miles | SW |
| Little Run Loop | Prince William, VA | 44.4 miles | SW |
| Turkey Run Ridge Trail | Prince William, VA | 44.4 miles | SW |
| Oak Ridge Trail | Prince William, VA | 44.5 miles | SW |
| High Meadows Trail | Prince William, VA | 44.8 miles | SW |
| Farms to Forest Trail | Prince William, VA | 45 miles | SW |
| South Valley Trail | Prince William, VA | 45.7 miles | SW |
| Chopawamsic Trail | Prince William, VA | 46.7 miles | SW |
| Mason-Dixon Trail | Harford, MD | 55.6 miles | NE |
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