Fishing Gemini Lakes

Gemini Lakes is a 120-acre oligotrophic lake that has transformed into an excellent walleye fishery following strategic management intervention. Walleye average 15.5 inches with exceptional growth rates (+1.0 growth index) and 59% of fish meeting the 15-inch minimum. The lake's low productivity initially created an overpopulated yellow perch problem in the early 1990s, but walleye stocking from 1992-2004 successfully controlled the perch and established a naturally reproducing walleye population. Dissolved oxygen remains suitable for coldwater species down to 12 feet, making this the prime walleye zone during summer stratification. The substrate transitions from sand and scattered gravel in shallow areas to organic material in deeper water. Yellow perch now serve primarily as forage, comprising 43% of the catch by number but averaging only 3.3 inches with just 5% reaching legal size. Rock bass provide the best panfish opportunity with 74% of fish exceeding 6 inches and average growth rates. Northern pike are present but limited, averaging 20.5 inches with above-average growth (+0.9) though only 29% reach the 24-inch minimum. The lake's exceptionally low alkalinity (7 mg/L) makes it vulnerable to acidification and unsuitable for crustaceans like crayfish. Two DNR campgrounds provide access with boat launches at both the north and south ends. The minimal shoreline development and intact riparian habitat contribute to the lake's natural character and fish habitat quality.