Limestone Lake

Limestone Lake carries a solid B grade — strong on most parameters, with measurements that hold up well across the summer season. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

A TSI near 40 places Limestone Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. A maximum depth of 34 ft puts Limestone Lake in the middle of Minnesota's depth distribution. At 234 acres, Limestone Lake fits the Minnesota median for monitored lakes, with 5.0 miles of shoreline. Limestone Lake ranks 16 of 64 in Wright County, putting it in the upper tier of locally monitored lakes.

Zebra mussel presence at Limestone Lake means the lake's clarity numbers carry an asterisk — filtered water is not the same as nutrient-poor water. Walleye are documented at Limestone Lake, one of 13 fish species on record for the lake. A documented public access point at Limestone Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.