Old map showing West Florida, the panhandle, and East Florida, to the southeast. Under west and east Florida, a label reads, To Great Britain, 1763 to 1783. To the left of west Florida is the city of New Orleans. The Mississippi River is on the western side of the map, and runs from north to south, passing Fort Panmure and exiting at New Orleans. Fort Toulouse is north in West Florida, near the Alabama River. Saint Marks is slightly inland in East Florida. The Gulf of Mexico is south. Public Domain

Based on the map, which city would be the best location for a shipping port?

Fort Panmure
Fort Toulouse
New Orleans
St. Marks