Maps showing the locations of wetlands, filed by the Department of Natural Resources. The department used enlarged copies of aerial photographs on which to designate wetland areas. The documents, measuring 42" x 45", are folded and stored in manila envelopes. The series includes an alphabetical list of landowners with a cross reference to the appropriate map. The names of the landowners do not appear on the maps. Access available in electronic form derived from the list of landowners and the records themselves. The dark background on each map may make image production impractical. The originals existing at the state level may provide a more viable option.