LakeMaster - Dakotas + Nebraska - Version 6LakeMaster™ Dakotas-Nebraska V6 microSD Format Electronic Chart by Humminbird®. Version 6 The Humminbird LakeMaster Dakotas Nebraska Edition combines many of the best fishing waters for North Dakota, South Dakota, and Nebraska all on one map card. The Dakotas Nebraska Version 6 map card is i-Pilot® Link™ compatible. This map card has over 345 total lakes with contours, of which more than 100 are now High Definition lakes including these highly requested water bodies: Jamestown, Stutsman, Bellfourche, Butte, Angostura, Fall River, Lewis and Clark, Bon Homme. Also features other popular fishing waters like: Devils, ND; Sakakawea, ND; Francis Case, SD; Oahe, SD; Sharpe, SD; Waubay, SD; Plus many more. Lake Elevations: Devils Lake map based on lake elevation of 1455', Francis Case map based on lake elevation of 1355', Oahe map based on lake elevation of 1620', Sakakawea map based on lake elevation of 1850', Sharpe map based on lake elevation of 1421'.Features:Engineered to high standardsHigh-grade design delivers extended lifespanMade with premium materials