The new LakeMaster Great Plains Humminbird compatible Version 4 map card now brings the ground-breaking technology of "Follow the Contour" to your fingertips. The SD map card's new feature, when combined with a compatible i-Pilot Link system, allows you to choose a path directly on or offset from any contour and automatically navigate it letting you focus on fishing more than ever before.
The Great Plains card has over 330 total lakes with over 150 in high definition contours. The map card features new high definition data for Kansas lakes:
Smithville, Lake of the Ozarks, Table Rock, Red Rock, Mississippi River, Illinois River Pools, Truman Reservoir
Great Lakes Coverage Includes:
All of Lake Michigan in 5ft & 10ft contours.
Green Bay, Big Bay De Noc, Little Bay De Noc, and Sturgeon Bay in 3ft contours.