I was reading some reviews about going out to 70 feet so i looked at the chart viewer as i run Navionics on the great lakes. I was wondering what the little number is off the corner of the depth number, I'll include a pic showing what i mean
The South End provides useful resources and discussion forums for those that fish The South End of Lake Michigan for Salmon, Steelhead, Perch, and Bass as well as elsewhere in the Region and Chicago area.