ProMaps for Michigan by LakeMaster

Features 54 lakes with high definition 1'-3' depth contours.

The Michigan ProMaps gps card also includes high definition charts for the Great Lakes. Included are the entire Lake Michigan Basin plus Green Bay, Little and Big Bay de Noc, Grand Traverse Bay, and Sturgeon Bay. Lake Huron coverage consists of the Michigan parts of Lake Huron including Saginaw Bay and the St Mary's River. Lake Erie coverage includes the Western Basin of Lake Erie, Lake St Clair, the St Clair River, and the Detroit River.

Over 700 Lowrance enhanced maps are also included on the card. These maps include detailed depth contours and shorelines, hazards, navigational aids, weed symbols, and more. Most of the lakes are Michigan lakes but there are some Illinois, Indiana, Ohio and Wisconsin lakes with depth information included.

There is also very accurate background data included on the electronic charts. Detailed roads, addresses, thousands points of interest, and named lakes and ponds are some of this background data.