GARMIN WAYPOINT MEMORY CHIP WITH 84 OF THE OIL RIGS FOR TUNA FISHING INCLUDING THE LUMPS. $400
I have 3 routes taken off the Garmin charts up the Mississippi river to Venice, but they are RUN AT YOUR ON RISK since they have not been TESTED. I will include them on the chip and you can decide if you want to use them.
I can load the data on a G-chart for the cost of the chip. These card are harder to find each day and getting expensive.