Latitudes and Longitudes
| Seaport Name | Seaport Code | Country | Latitude | Longitude |
|---|---|---|---|---|
| Gulfport (Usa-Ny) | USGUP | United States of America | 40°37'N | 74°05'W |
| Delaware City | USDEB | United States of America | 39°35'N | 75°36'W |
| Juneau | USJNU | United States of America | 58°18'N | 134°24'W |
| S.W. Passage | USSWS | United States of America | 28°55'N | 89°25'W |
| Beaumont | USBPT | United States of America | 30°05'N | 94°05'W |
| Carteret | USCRT | United States of America | 40°35'N | 74°13'W |
| Stamford | USSTM | United States of America | 41°02'N | 73°33'W |
| Haines | USHNS | United States of America | 59°15'N | 135°25'W |
| Sewaren | USPRD | United States of America | 40°33'N | 74°15'W |
| Pilot Town | USPIT | United States of America | 29°11'N | 89°15'W |
| Baytown | USHPY | United States of America | 29°44'N | 95°01'W |
| Buffalo | USBUF | United States of America | 42°55'N | 78°52'W |
| New London | USGON | United States of America | 41°21'N | 72°06'W |
| Dutch Harbour | USDUT | United States of America | 53°55'N | 166°35'W |
| Port Reading | USPRD | United States of America | 40°33'N | 74°15'W |
| Ostrica | USOST | United States of America | 29°22'N | 89°32'W |
| Atreco | USATR | United States of America | 29°59'N | 93°53'W |
| Alsen | USALS | United States of America | 42°11'N | 73°55'W |
| Milwaukee | USMKE | United States of America | 43°01'N | 87°53'W |
| New Haven | USHVN | United States of America | 41°14'N | 72°55'W |