Lizard Mound County Park contains thirty-one fine examples of effigy mounds, low earthworks usually built in the shapes of birds or animals. Though used for burial purposes, a mound seldom contains more than one or two remains. Excavations of the mounds and camp-sites have provided some knowledge of the life of this prehistoric group of Wisconsin Indians. They lived in small scattered bands and depended largely on hunting and fishing for food, though some gardening was practiced. Most of their tools and weapons were made of stone, some of wood and bone, and, in rare instances, copper. Pottery vessels were used for cooking. Except for a few examples in adjoining states, effigy mounds are found only in Wisconsin.