I have moved my Garmin 178c to a smaller 12' boat that will just be used for fishing on 1 or 2 lakes in Washington State. I am looking for someone who might have an used or not needed "Garmin US Inland Lakes CD Version 5.0" that they would like to get rid offor a reasonable price. The only area that I need on the entire disk is the area that contains Riffe Lake.. I refuse to pay what retailers want for basically an obsolete or no longer supported CD...