Stump lake is a layered map with current water level imagery and low water imagery so the angler can scan in and see the lake with detail hidden away for years for that spot on the spot map.
Works in all:
HDS Gen 1-2-3
Elite HDI/Chirp/TI & Hook models.
Comes in a micro SD card with SD adapter.
Note: Gen 1 units need the last Lowrance update to run. Click here 4.1.36.68
