I do a lot of fishing on Flathead Lake, and Lakemaster only has a standard definition survey of that lake, which is junk. But if your favorite lakes aren't covered by one of the 11 HD Lakemaster maps, you'd be better off with the Navionics maps. From pictures I have seen of high definition LakeMaster maps, they appear to have comparable detail to the Navionics maps, so if you do most of your fishing on a lake which is covered by a high definition LakeMaster map, you may be OK on that lake. All the rest are standard definition surveys, which on the lakes where I fish are basically worthless. In Montana, there are only 11 lakes which have HD maps. Non-bold denotes standard definition surveys, bold denotes HD lakes, bold italic denotes HD LakeMaster surveyed lakes, and * denotes new or remapped lakes. However, before you review the list of lake maps available in Montana, check out the legend in the upper right corner of the first page of the list.
There is a list of the lake maps available on the Lakemaster system at.
You can check out the Navionics maps all over the country and off-shore on the Navionics web app at &key=yctzGh%7DfhT. Which lake maps are best for you may depend on which system has the best maps for the lakes where you fish the most.
