Latitudes and Longitudes
| Seaport Name | Seaport Code | Country | Latitude | Longitude |
|---|---|---|---|---|
| Portsmouth (Usa) | USPMN | United States of America | 43°03'N | 70°45'W |
| Gretna | USGRT | United States of America | 29°15'N | 90°04'W |
| Everett (Usa-Wa) | USEVE | United States of America | 47°59'N | 122°13'W |
| Philadelphia | USPHL | United States of America | 39°57'N | 75°10'W |
| San Francisco | USSFO | United States of America | 37°48'N | 122°25'W |
| Gulfport (Usa-Mi) | USGPT | United States of America | 30°21'N | 89°05'W |
| Good Hope | USGDH | United States of America | 29°59'N | 90°24'W |
| Anacortes | USATS | United States of America | 48°31'N | 122°37'W |
| Marcus Hook | USMAH | United States of America | 39°49'N | 75°25'W |
| San Diego | USSAN | United States of America | 32°41'N | 117°07'W |
| Duluth | USDLH | United States of America | 46°49'N | 92°09'W |
| Garyville | USGRL | United States of America | 30°03'N | 90°37'W |
| Yorktown | USYOR | United States of America | 37°14'N | 76°30'W |
| Eagle Point | USEAG | United States of America | 39°57'N | 75°10'W |
| Detroit | USDET | United States of America | 42°19'N | 83°05'W |
| Destrehan | USDES | United States of America | 29°56'N | 90°21'W |
| Sewells Point | USSWP | United States of America | 36°57'N | 76°20'W |
| Portland (Usa-Or) | USPDX | United States of America | 45°30'N | 122°40'W |
| Port San Luis | USPSL | United States of America | 35°10'N | 120°45'W |
| Sandwich | USSWH | United States of America | 41°46'N | 70°29'W |