The Humminbird LakeMaster Great Lakes v4 microSD map card has added over 140 new lakes and 50 High Definition waters, and boasted contours for a total of over 1540 lakes with more than 380 lake maps in High Definition for Michigan, Indiana, and Ohio.

Humminbird 600015-7 LakeMaster Chart – Great Lakes – v4 Updates:

• All of Lake Huron (now including Georgian Bay)
• Full coverage of Lake Superior
• Updated shallow water areas for Lake Michigan and parts of Lake Superior
• Beaver Island on Lake Michigan in High Definition
• Updated the Detroit River High Definition survey (including the Canadian side)
• Updated the St. Clair River High Definition survey (including the Canadian side)
• New High Definition Survey of Lake St Clair (including the Canadian side)
• High Definition survey of Lower Grand and Spring Lake in Michigan
• High Definition survey of Portage/Torch, Houghton in Michigan
• High Definition survey of Wamplers, Lenawee in Michigan
• High Definition survey of Syracuse, Kosciusko in Indiana

Of course, with the LakeMaster Great Lakes v4 micro SD map card you enjoy all of the LakeMaster features including the following:

• i-Pilot Link compatible
• Easy to read contours
• Depth Highlight Range
• Water Level Offset
• Shallow Water Highlight
• Scrollable Lake List

NOTE: The Great Lakes product no longer includes Kentucky and Tennessee lakes. See the LakeMaster SouthEast Edition products for lakes in these states.