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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- Species
Smallmouth BassTechniqueSwim 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
Largemouth BassTechniqueSpinnerbaitsSeasonSummerStructureLaydownsRock 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.
- SpeciesSmallmouth BassTechniqueSoft Body Swimbaits (Small/Medium)SeasonSpring (Post-Spawn)StructureRip Rap
Rock 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.
- SpeciesLargemouth BassTechniqueSpinnerbaitsSeasonSpring (Pre-Spawn)StructureReeds
May 30–With the water still being somewhat cold, I tied on a spinnerbait and slow-rolled it around lay downs. We didn’t get many hits, but this one was almost 4 lbs so it paid off.
- Species
WalleyeTechniqueVertical Jigging Shallow (0-9')SeasonFallStructureRock PileRock River—October 17/24–My dad and I went out for some fall walleye and ended up catching 8-10 nice walleye on jig-and-plastic presentations. We had to fish pretty slow since it was close to freezing temps outside, but it was worth it. We focused on deep holes and channels. I then hit a local pond and used a Megabass Vision 110 to catch a half dozen largemouth on shoreline drop offs.
- SpeciesLargemouth BassTechniqueSoft Body Swimbaits (Small/Medium)SeasonFallStructureRip Rap
Rock River—September 6–This was by far the best bass fishing weekend of the year on the River. Between crank baits, spinnerbaits, and soft swimbaits, I caught about a dozen largemouth and smallmouth up in shallow rocks and wood. This solid largemouth came on a Swimbait. Also caught a bonus channel cat on the swimbait!
- SpeciesSmallmouth BassTechniqueBladed JigsSeasonSummerStructureRip Rap
Rock River—August 7–The River was as warm as a bathtub, which made fishing tough. We caught some other random species, and then I caught this big smallie (about 3 lbs) on a black and purple chatterbait in the grass. I was fishing it pretty slow.
- SpeciesWalleyeTechniqueTrolling Shallow (0-9')SeasonFallStructureRiver Channels
I 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.
