• The Lake Rayburn, Texas fishing area is located just north of Jasper, Texas. The F109-02 SD card shows all the detailed fishing information as shown on the, waterproof, two-sided fishing map F109. This SD card is designed for boat fishermen having the Lowrance electronic fishing unit on board.• A Lowrance SD card, designed to plug into most Lowrance electronic fishing units and to download all the fishing waypoints shown on the F109 waterproof freshwater lake two-sided fishing map of Lake Livingston,Texas. The fishing waypoints will be permanently displayed on the Lowrance unit, once downloaded.• Lake Sam Rayburn (F109-02 SD card) is a large East Texas lake, located east of Lufkin. Lake Sam Rayburn holds Black Bass, Crappie, White Bass, and Catfish. Many fishing tournaments are held every year in this large lake.• The downloaded fishing information on your Lowrance unit will display various waypoints as symbols for fishing locations, marinas , boat ramps, kayak launch points and other points of interest.