Saganashkee Slough is a large 377-acre shallow lake located in Cook County, Illinois, near Willow Springs. This impressive waterbody is managed by the Forest Preserves of Cook County and serves as one of the premier fishing destinations in the Chicago metropolitan area. The slough is relatively shallow, reaching only 6.3 feet deep at the west end, and was formed as one of the great outlet rivers during the Ice Age. Today, it attracts both humans and wildlife with its breathtaking vistas and spectacular sunsets, while supporting thriving fish populations due to its large size, varied bottom materials, natural structures like sunken trees, and inaccessible stretches of shoreline that provide excellent breeding and hiding places for fish.