| distance | reference number | name | latitude | longitude |
| 511.4 | 1051 | Fredericksburg, Rappahannock River, Virginia | 38.3 | -77.45 |
| 514.2 | 1776 | Massaponax, Rappahannock River, Virginia | 38.25 | -77.4167 |
| 515.4 | 88 | Aquia Creek, Virginia | 38.4167 | -77.35 |
| 517.9 | 2475 | Quantico Creek, Virginia | 38.5167 | -77.2833 |
| 519.6 | 1660 | Liverpool Point, Maryland | 38.4667 | -77.2667 |
| 520.3 | 591 | Clifton Beach, Maryland | 38.4167 | -77.2667 |
| 521.1 | 750 | Deep Point, Mattawoman Creek, Maryland | 38.5667 | -77.2167 |
| 521.4 | 1266 | High Point, Occoquan Bay, Virginia | 38.6167 | -77.2 |
| 522.4 | 640 | Corbins Neck, Rappahannock River, Virginia | 38.2167 | -77.2833 |
| 522.4 | 503 | Chain Bridge, Washington, D.C. | 38.9333 | -77.1167 |
| 522.6 | 1377 | Indian Head, Maryland | 38.6 | -77.1833 |
| 523.6 | 502 | Chain Bridge, one mile below, Washington, D.C. | 38.9167 | -77.1 |
| 524.6 | 1183 | Gunston Cove, Virginia | 38.6667 | -77.1333 |
| 524.8 | 1319 | Hopyard Landing, Rappahannock River, Virginia | 38.25 | -77.2333 |
| 525.2 | 1771 | Maryland Point Light, Maryland | 38.35 | -77.2 |
| 525.3 | 1114 | Glymont, Maryland | 38.6167 | -77.1333 |
| 525.7 | 1495 | Key Bridge, Washington, D.C. | 38.9 | -77.0667 |
| 526.4 | 1767 | Marshall Hall, Maryland | 38.6833 | -77.1 |
| 527.1 | 1903 | Mount Vernon, Virginia | 38.7 | -77.0833 |
| 527.3 | 2536 | Richmond (river locks), James River, Virginia | 37.5333 | -77.4167 |
| 527.6 | 2551 | Riverside, Maryland | 38.3833 | -77.15 |
| 528.0 | 1708 | Lower Rocketts, James River, Virginia | 37.5 | -77.4167 |
| 528.3 | 2509 | Reagan National Airport, Washington, D.C. | 38.85 | -77.0333 |
| 528.4 | 958 | Falling Creek entrance, James River, Virginia | 37.4333 | -77.4333 |
| 528.5 | 222 | Bellevue, Washington, D.C. | 38.8333 | -77.0333 |