Little Carr Lake

Little Carr 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.

Mesotrophic conditions dominate at Little Carr Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. The lake bottoms out at 30 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. Little Carr Lake is small — 51 acres alongside partial shoreline records — which makes it sensitive to even modest changes in watershed runoff or recreational pressure. Little Carr Lake ranks 52 of 134 in Oneida County — solidly in the upper half of the local distribution.

An invasive species record — Purple Loosestrife — has been logged at Little Carr Lake; Wisconsin DNR maintains the official infested-waters list. The fishery includes walleye alongside the lake's other 4 documented species — a notable draw for Wisconsin anglers. A documented public access point at Little Carr 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.