| distance | reference number | name | latitude | longitude |
| 21.1 | 807 | Dover, Piscataqua River, Cocheco River, New Hampshi | 43.1983 | -70.8683 |
| 21.8 | 2637 | Salmon Falls River entrance, Piscataqua River, New | 43.19 | -70.825 |
| 23.1 | 3292 | Wells, Webhannet River, Maine | 43.32 | -70.5633 |
| 23.1 | 3293 | Wells, Webhannet River, Maine (sub) | 43.32 | -70.5633 |
| 25.8 | 240 | Biddeford, Saco River, Maine | 43.4917 | -70.4467 |
| 26.1 | 805 | Dover Point, Piscataqua River, New Hampshire | 43.1167 | -70.8333 |
| 26.4 | 1488 | Kennebunkport, Maine | 43.3583 | -70.4767 |
| 28.3 | 111 | Atlantic Heights, Piscataqua River, New Hampshire | 43.09 | -70.7667 |
| 28.7 | 3412 | York Harbor, Maine | 43.1317 | -70.6417 |
| 28.7 | 447 | Cape Porpoise, Maine | 43.3667 | -70.4317 |
| 28.9 | 2727 | Seavey Island, Portsmouth Harbor, Maine (sub) | 43.0833 | -70.75 |
| 29.2 | 2436 | Portsmouth, Portsmouth Harbor, New Hampshire | 43.0783 | -70.7517 |
| 29.3 | 2726 | Seavey Island, Portsmouth Harbor, Maine | 43.08 | -70.7417 |
| 29.9 | 1532 | Kittery Point, Portsmouth Harbor, Maine | 43.0817 | -70.7033 |
| 29.9 | 2903 | Squamscott River RR. Bridge, Piscataqua River, New | 43.0533 | -70.9133 |
| 30.0 | 407 | Camp Ellis, Saco River Entrance, Maine | 43.4617 | -70.3817 |
| 30.3 | 1033 | Fort Point, New Hampshire | 43.0717 | -70.7117 |
| 30.3 | 1034 | Fort Point, Portsmouth Harbor, New Hampshire | 43.0717 | -70.7117 |
| 30.5 | 2111 | Old Orchard Beach, Maine | 43.5167 | -70.3667 |
| 30.6 | 2721 | Seapoint, Cutts Island, Maine | 43.085 | -70.6617 |
| 30.8 | 1408 | Jaffrey Point, Portsmouth Harbor, Maine | 43.0567 | -70.7317 |
| 30.9 | 1099 | Gerrish Island, Portsmouth Harbor, New Hampshire | 43.0667 | -70.695 |
| 35.7 | 1013 | Fore River, Maine | 43.6417 | -70.285 |
| 37.6 | 1130 | Gosport Harbor, Isles of Shoals, New Hampshire | 42.9783 | -70.615 |
| 38.1 | 2429 | Portland, Casco Bay, Maine | 43.6567 | -70.2467 |