| distance | reference number  | name |  latitude  |  longitude | 
| 3.7 | 2552  | Riverside, Merrimack River, Massachusetts            |  42.7633  |  -71.0767 | 
| 9.7 | 1811  | Merrimacport, Merrimack River, Massachusetts         |  42.825  |  -70.9883 | 
| 14.4 | 2635  | Salisbury Point, Merrimack River, Massachusetts      |  42.8383  |  -70.9083 | 
| 16.6 | 1989  | Newburyport, Merrimack River, Massachusetts          |  42.8117  |  -70.865 | 
| 19.3 | 2284  | Plum Island, Merrimack River Entrance, Merrimack Ri  |  42.8167  |  -70.82 | 
| 20.9 | 1209  | Hampton Harbor, New Hampshire                        |  42.9  |  -70.8167 | 
| 21.2 | 2283  | Plum Island Sound (south end), Massachusetts         |  42.71  |  -70.7883 | 
| 21.4 | 2633  | Salem Harbor, Salem, Massachusetts                   |  42.5233  |  -70.8767 | 
| 21.8 | 1720  | Lynn, Lynn Harbor, Massachusetts                     |  42.4583  |  -70.9433 | 
| 21.9 | 2903  | Squamscott River RR. Bridge, Piscataqua River, New   |  43.0533  |  -70.9133 | 
| 22.6 | 51  | Amelia Earhart Dam, Mystic River, Massachusetts      |  42.395  |  -71.0767 | 
| 23.1 | 934  | Essex, Massachusetts                                 |  42.6317  |  -70.7767 | 
| 23.8 | 531  | Chelsea St. Bridge, Chelsea River, Massachusetts     |  42.3867  |  -71.0233 | 
| 24.0 | 519  | Charlestown, Charles River, Massachusetts            |  42.375  |  -71.05 | 
| 25.2 | 311  | Boston, Boston Harbor, Massachusetts                 |  42.355  |  -71.0517 | 
| 27.5 | 751  | Deer Island (south end), Boston Harbor, Massachuset  |  42.345  |  -70.9583 | 
| 27.9 | 805  | Dover Point, Piscataqua River, New Hampshire         |  43.1167  |  -70.8333 | 
| 28.5 | 77  | Annisquam, Lobster Cove, Massachusetts               |  42.655  |  -70.6767 | 
| 28.9 | 1884  | Moon Head, Massachusetts                             |  42.3083  |  -70.9883 | 
| 29.5 | 1960  | Neponset, Neponset River, Massachusetts              |  42.285  |  -71.04 | 
| 29.6 | 111  | Atlantic Heights, Piscataqua River, New Hampshire    |  43.09  |  -70.7667 | 
| 29.8 | 2436  | Portsmouth, Portsmouth Harbor, New Hampshire         |  43.0783  |  -70.7517 | 
| 30.0 | 1408  | Jaffrey Point, Portsmouth Harbor, Maine              |  43.0567  |  -70.7317 | 
| 30.1 | 2727  | Seavey Island, Portsmouth Harbor, Maine (sub)        |  43.0833  |  -70.75 | 
| 30.1 | 310  | Boston Light, Boston Harbor, Massachusetts           |  42.3283  |  -70.8917 |