| distance | reference number | name | latitude | longitude |
| 20.0 | 2552 | Riverside, Merrimack River, Massachusetts | 42.7633 | -71.0767 |
| 20.5 | 51 | Amelia Earhart Dam, Mystic River, Massachusetts | 42.395 | -71.0767 |
| 22.5 | 519 | Charlestown, Charles River, Massachusetts | 42.375 | -71.05 |
| 23.1 | 311 | Boston, Boston Harbor, Massachusetts | 42.355 | -71.0517 |
| 23.4 | 531 | Chelsea St. Bridge, Chelsea River, Massachusetts | 42.3867 | -71.0233 |
| 26.1 | 1720 | Lynn, Lynn Harbor, Massachusetts | 42.4583 | -70.9433 |
| 26.3 | 1960 | Neponset, Neponset River, Massachusetts | 42.285 | -71.04 |
| 26.5 | 1811 | Merrimacport, Merrimack River, Massachusetts | 42.825 | -70.9883 |
| 27.8 | 1884 | Moon Head, Massachusetts | 42.3083 | -70.9883 |
| 28.1 | 751 | Deer Island (south end), Boston Harbor, Massachuset | 42.345 | -70.9583 |
| 29.2 | 2633 | Salem Harbor, Salem, Massachusetts | 42.5233 | -70.8767 |
| 30.4 | 2068 | Nut Island, Quincy Bay, Massachusetts | 42.28 | -70.955 |
| 31.0 | 2635 | Salisbury Point, Merrimack River, Massachusetts | 42.8383 | -70.9083 |
| 31.1 | 3316 | Weymouth Fore River Bridge, Massachusetts | 42.245 | -70.9683 |
| 31.3 | 1339 | Hull, Massachusetts | 42.3033 | -70.92 |
| 32.0 | 310 | Boston Light, Boston Harbor, Massachusetts | 42.3283 | -70.8917 |
| 32.6 | 1989 | Newburyport, Merrimack River, Massachusetts | 42.8117 | -70.865 |
| 34.1 | 694 | Crow Point, Hingham Harbor entrance, Massachusetts | 42.2617 | -70.8933 |
| 35.0 | 1279 | Hingham, Massachusetts | 42.2467 | -70.885 |
| 35.1 | 2283 | Plum Island Sound (south end), Massachusetts | 42.71 | -70.7883 |
| 35.1 | 934 | Essex, Massachusetts | 42.6317 | -70.7767 |
| 35.2 | 2284 | Plum Island, Merrimack River Entrance, Merrimack Ri | 42.8167 | -70.82 |
| 35.4 | 1939 | Nantasket Beach, Weir River, Massachusetts | 42.27 | -70.86 |
| 37.6 | 1209 | Hampton Harbor, New Hampshire | 42.9 | -70.8167 |
| 38.8 | 2903 | Squamscott River RR. Bridge, Piscataqua River, New | 43.0533 | -70.9133 |