What lake? I grew up fishing Koronis on weekends and a couple week vacations in summer. Larger lake but divided up enough to be fishable in most winds. One of my best pike spots was the corner between 1st Island and Van's Beach... trolled a fathead tipped spinner rig right down the center of the weed bed that forms there. Most people ignored it, it was a difficult spot to fish well with water depth of 8 feet on the shore side of the boat and 30 feet to the lake side! Sharp corner so trolling it required running the boat in really shallow then turning so the spinners tracks the middle of the weeds...
https://www.google.com/maps/place/La...1nyd?entry=ttu
Hard lake to fish but once you learn the structure it can turn out some nice fish! The map above can be scrolled out to see the whole lake...
Lake depth map
https://mnresorts.com/wp-content/upl...willmar-mn.jpg high rez so can zoom in to see the depths