Barringer Slough is a wetland in northeastern Clay County in northwestern Iowa, a reconstructed remnant of the Des Moines lobe within a landscape once linked by prairie wetlands. The marsh and its surrounding public uplands cover about 1,526 acres. Cattails, coontail, sedges, marsh marigold, and duckweed support muskrats and many birds, including herons, pelicans, and ducks. In winter, pheasants and deer use the slough for cover. During high water, a narrow channel allows canoe travel from Lost Island Lake on the north side to the outlet at the south end.