Lake Koshkonong
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Lake Koshkonong Fishing Reports
Stay up to date with the latest fishing reports from Lake Koshkonong. Reports are submitted by local anglers, fishing guides, and our team of fishing experts.
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Reports from all past years within a 60-day time frame
- Species
Walleye
TechniqueShallow Diving Crankbaits (0-6')SeasonSpring (Post-Spawn)StructurePilingsI have started using Shad raps more with a good amount of success. Grind the bottom in deeper holes and around structure and hang on!
- Species
Largemouth Bass
TechniqueSpinnerbaitsSeasonSpring (Pre-Spawn)StructureRip RapThey eat spinnerbaits here all year long. Fish them everywhere!
- Species
Smallmouth Bass
TechniqueSwim JigsSeasonFallStructureLaydownsAn absolute killer day fishing the Rock River/ Lake Kosh. Me and my buddy hammered them fishing white swim jigs. The smallies were chasing small shad/minnows in the shallows. The key was feathering Dirty Jigs white or chartreuse swim jigs over wood and brush near rock shoreline. Our best 5 went over 16 lbs. Including the 4.5 and the 3.5 shown in this picture! Do not forget white swimjigs in the Fall!!
- Species
Sauger
TechniqueLive Bait RigsSeasonSummerStructureDocksIn the summer I had success just downriver from the lake using a jig-n-minnow around docks to pull walleye and sauger out of the shadows. Docks that provided the best current breaks worked best as well as the bridge pilings. It was key to maintain bottom contact with small hops in order to stay in the strike zone. Places where there were small depressions in the bottom held fish.
- Species
Northern Pike
TechniqueShallow Diving Crankbaits (0-6')SeasonFallStructureDocksIn the fall I cranked around docks and boat lifts and produced some pike and bass. It was key to bump the bottom with the squarebills but also pause every now and then to let it rise. I generally paused it right next to the corner poles of the structure and that got some good bites.
- Species
Walleye
TechniqueTrolling Shallow (0-9')SeasonFallStructureRiver ChannelsI only have basic trolling equipment, but we were able to catch a lot of walleye trolling just above idle using a specific bait: Berkeley Flicker Shads. I was also able to pick up a nice sauger on a Rapala Shad rap. Trolling down main channels and over rock transitions proved very effective.
- Species
Largemouth Bass
TechniqueSpinnerbaitsSeasonSummerStructureLaydownsRock River—July 3–The fishing was tough. I grinded for a half-day just for this one largemouth one a spinnerbait. Spinnerbaits seem to be the ticket for dirty rivers.
- Species
Smallmouth Bass
TechniqueSoft Body Swimbaits (Small/Medium)SeasonSpring (Post-Spawn)StructureRip RapRock River—June 19–The River finally warmed up enough for the bass to get shallow. We caught a mixed bag including a handful of bass on soft paddle-tail swimbaits on a jighead.