Hook-N-Line Fishing Map F129. Gulf of Mexico Offshore Fishing Map (with GPS). Covers areas south of Mobile Bay Alabama, to the Mississippi River Delta of Louisiana. Alabama, Mississippi, Louisiana Offshore area Hook-N-Line Fishing Map F-129 Gulf of Mexico Offshore Fishing Map (with GPS). This two-sided offshore saltwater fishing map covers areas south of Alabama, Mississippi and the Mississippi River Delta of Louisiana. The map shows latitude - longitude lines and oil lease blocks where many of the offshore platforms and wells are located. The reverse side of this map has listings for hundreds of fishing locations with GPS coordinates, water depth and fish species caught there for different times of the year. Hook N Line, HookNLine