| distance | reference number | name | latitude | longitude |
| 19.7 | 2443 | Presumpscot River Bridge, Maine | 43.69 | -70.2467 |
| 19.8 | 959 | Falmouth Foreside, Maine | 43.7317 | -70.2033 |
| 19.9 | 123 | Back Cove, Maine | 43.6833 | -70.25 |
| 20.2 | 2445 | Prince Point, Maine | 43.7617 | -70.1733 |
| 20.8 | 1013 | Fore River, Maine | 43.6417 | -70.285 |
| 21.3 | 2429 | Portland, Casco Bay, Maine | 43.6567 | -70.2467 |
| 22.0 | 665 | Cow Island, Maine | 43.69 | -70.19 |
| 22.2 | 808 | Doyle Point, Maine | 43.7517 | -70.14 |
| 22.4 | 2864 | South Freeport, Maine | 43.82 | -70.1033 |
| 22.5 | 1149 | Great Diamond Island, Maine | 43.67 | -70.2 |
| 23.0 | 1678 | Long Island, Maine | 43.69 | -70.1683 |
| 23.1 | 1148 | Great Chebeague Island, Maine | 43.7217 | -70.1417 |
| 23.1 | 2208 | Peaks Island, Maine | 43.655 | -70.2 |
| 23.6 | 716 | Cushing Island, Maine | 43.645 | -70.1983 |
| 24.1 | 3199 | Vaill Island, Maine | 43.6767 | -70.155 |
| 24.3 | 2428 | Portland Head Light, Maine | 43.6233 | -70.2067 |
| 25.5 | 588 | Cliff Island, Luckse Sound, Maine | 43.695 | -70.11 |
| 26.1 | 2111 | Old Orchard Beach, Maine | 43.5167 | -70.3667 |
| 27.1 | 240 | Biddeford, Saco River, Maine | 43.4917 | -70.4467 |
| 28.7 | 2865 | South Harpswell, Potts Harbor, Maine | 43.7383 | -70.0233 |
| 29.2 | 407 | Camp Ellis, Saco River Entrance, Maine | 43.4617 | -70.3817 |
| 29.6 | 363 | Brunswick, Adroscoggin River, Maine | 43.9217 | -69.9633 |
| 29.6 | 3355 | Wilson Cove, Middle Bay, Maine | 43.825 | -69.9767 |
| 33.9 | 317 | Bowdoinham, Cathance River, Maine | 44.0083 | -69.895 |
| 34.1 | 68 | Androscoggin River entrance, Kennebec River, Maine | 43.95 | -69.8883 |