Archives at the Institute for Fisheries Research (IFR) hold records of thousands of lake surveys from the University of Michigan and Michigan Department of Natural Resources. The records contained in this dataset are jpeg images of the index card records from the IFR surveys. Images include the front of the card and when available, the back of a card. and Fish Collection Summary cards contain tabulated information on the location and gears used for a lake survey at different stations around the lake. These summary cards often complement the FISHc cards.