Memphis also has the 2nd biggest cargo port on the Mississippi River (the 4th biggest inland port in the United States).[25] The International Port of Memphis covers the Tennessee and Arkansas sides of the Mississippi River from river mile 725 (km 1167) to mile 740 (km 1191).[26].
 
Key Factor
640 river miles north of New Orleans
400 river miles south of St.Louis
Jurisdiction extends from miles
715.5 to 741.0 on Mississippi River
Three slack water harbors
– McKellar Lake Harbor
– Pidgeon Industrial Harbor
– Wolf River Harbor.