With so many lakes in Minnesota it could easily get confusing on the quality of each lake. Thanks to the Department of Natural Resources, they do the research for you. All you have to do is fumble through the data.
On their website, you can look up the lake of your choice and then obtain information on water quality, water clarity, what types of fish the lake stocks, topography charts, and more. The DNR also offers Fish Consumption Advisories and lets local real estate owners know if certain species have higher than normal amounts of Mercury.