08/23/2026
Take a drive across southern Wisconsin from Kenosha County, through Walworth County, and into Rock County, and you are traveling across a landscape where people were leaving evidence of their lives thousands of years before any of our communities had names.
In Kenosha County, that story reaches all the way back to the Ice Age. In the early 1990s, the remains of a mammoth were discovered on a farm in the Town of Paris. Archaeologists eventually determined that the animal, now known as the Schaefer mammoth, lived more than 13,000 years ago. Marks found on its bones showed evidence that humans had butchered the animal.
Then another remarkable discovery was made in Kenosha County. The Hebior mammoth was found near Pleasant Prairie, and archaeologists recovered much of the animal's skeleton along with stone tools associated with the remains. Cut marks on the bones provided additional evidence of human activity. Today, both mammoths are preserved by the Kenosha Public Museum. Thousands of years before Wisconsin existed, human beings were living in what is now southeastern Wisconsin alongside mammoths.
But the evidence of the people who lived here long before us isn't limited to what archaeologists have found underground. Thousands of years later, Native peoples constructed earthworks across Wisconsin. Some were circular or long and narrow, while others were built in the shapes of animals and other forms. Many served as burial places and remain sacred sites to Native people today.
Wisconsin became the center of an extraordinary mound-building tradition. The Wisconsin Department of Natural Resources estimates that more than 15,000 mounds once existed across the state, with perhaps 4,000 remaining today. Many disappeared as Wisconsin changed. Agriculture, roads, buildings, erosion and development transformed the landscape, sometimes erasing earthworks that had survived for centuries.
Travel west into Walworth County and evidence of that older landscape appears again. Native burial and effigy mounds were constructed around Delavan Lake and elsewhere in the county. Some survived while others disappeared as the area developed into the communities and recreational landscape we recognize today.
Keep traveling west into Rock County and some of this ancient landscape is still sitting right in the middle of Beloit. Twenty Native American mounds survive on the grounds of Beloit College from an original group of 25. They include conical and linear mounds as well as animal effigies, including one shaped like a turtle.
The Beloit College mounds were constructed roughly between A.D. 400 and 1200. That means some of those small rises in the ground were already hundreds of years old when the first European-American settlers arrived in the Beloit area, and they were ancient before Beloit College opened its doors in 1847.
The Beloit College mounds were not alone. During the nineteenth century, early researchers began recording Native earthworks across southern Wisconsin. One of the most important was Increase A. Lapham, who carefully surveyed and drew mound groups around Wisconsin. His work was published by the Smithsonian Institution in 1855, and some of those old drawings and maps survive today.
They're remarkable to look at because they preserve a landscape that, in many places, no longer exists. Mounds shown on nineteenth-century maps were later leveled by farming or development. In some cases, an old drawing may be one of the few records left showing what once stood there.
That's what makes this entire story so fascinating. Today we see Kenosha, Lake Geneva, Delavan, Janesville and Beloit. We see county lines, highways, farms, subdivisions and shopping centers. Those are relatively recent layers on a much older landscape.
In Kenosha County, archaeologists have found evidence of humans and mammoths dating back more than 13,000 years. Across Walworth County, Native people later constructed burial and effigy mounds, including around Delavan Lake. In Rock County, historical maps documented mound groups across the landscape, while 20 ancient mounds still survive on the Beloit College campus today.
There are many individual stories hiding inside this larger one, and we'll eventually come back and explore some of them. The Kenosha County mammoths deserve their own story. So does the ancient landscape around Delavan Lake, the surviving mounds at Beloit College, and the nineteenth-century maps that show earthworks in places where they can no longer be seen.
For now, the next time you travel across this part of southern Wisconsin, remember that the history beneath that road doesn't begin with the founding of our towns. Our communities may be approaching 200 years old, but the human story here is measured in thousands.
Long before our communities had names, they already had stories.
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