Lake map chip

 I have the 08 HOTSPOTS Premier for sale if you want it. The contours are about dead on.

There isn't a chip that will give you appropriate data from about 30/25 feet to 0 feet unless it is very structured terrain.  I say this because Navionics shot the lake when it was at 1814 and 1817 elevations and if my memory serves me correctly they didn't get their boats much beyond the 2 to 3 foot water depth (contour creation) at those elevations.  We are currently sitting at 1853.  Basically, whatever contour you have on the Navionics chip you have to add 40 feet to it.  So you see what I mean.

The chip is still very good for deep structure fishing and will provide you ice fishing guidance once the lake returns to around 1837.  You'll have to decide if that is important to you.

For shallow bay type fishing or even cut fishing the chip is not good at these elevations.  If the fish go deeper in the coming weeks and months the chip will start to become more useful.