I was down at the Mpls Boat Show and Lowrance introduced their line of mapping, covering areas from Texas to Lake Of The Woods, Dakotas to Michigan. High def 1 to 3 contours of 650 lakes. 5000 High def lakes shaded relief and an additional 100,000 lakes.
Stay tuned for more info on the Lowrance website. For right now they will only work in the HDS units