Latitudes and Longitudes
| Seaport Name | Seaport Code | Country | Latitude | Longitude |
|---|---|---|---|---|
| Port Isabel | USPIS | United States of America | 26°05'N | 97°13'W |
| Riverhead | USRID | United States of America | 40°59'N | 72°39'W |
| West Foreland | USWFO | United States of America | 60°43'N | 151°44'W |
| Baltimore | USBAL | United States of America | 39°17'N | 76°35'W |
| Port St. Joe | USPSJ | United States of America | 29°49'N | 85°19'W |
| Port Arthur (Usa) | USPAR | United States of America | 29°53'N | 93°57'W |
| Rensselaer | USRSR | United States of America | 42°39'N | 73°44'W |
| Valdez | USVDZ | United States of America | 61°05'N | 146°24'W |
| Yarmouth (Usa) | USYAR | United States of America | 43°48'N | 70°12'W |
| Port Mantee | USPMT | United States of America | 27°30'N | 82°33'W |
| Port Aransas | USPAS | United States of America | 27°50'N | 97°03'W |
| Port Jefferson | USPTJ | United States of America | 40°58'N | 73°05'W |
| Unalaska | USDUT | United States of America | 53°55'N | 166°35'W |
| Wiscasset | USWSC | United States of America | 44°00'N | 69°40'W |
| Port Everglades | USPEF | United States of America | 26°05'N | 80°05'W |
| Pasadena | USPSD | United States of America | 29°43'N | 95°13'W |
| Northville | USRID | United States of America | 40°59'N | 72°39'W |
| St. Thomas | VISTT | United States of America | 18°20'N | 64°56'W |
| Tyonek | USTYN | United States of America | 61°04'N | 151°09'W |
| South Brewer | USBGR | United States of America | 44°47'N | 68°47'W |