Warrenville in DuPage County, Illinois — The American Midwest (Great Lakes)
It Kame From the North
You are standing on a kame a gravel hill formed 70,000 years ago by a melting glacier in this case, a glacier thicker than the Willis Tower is tall.
As the glacier melted, streams flowed through channels in the ice, breaking apart rock carried within the glacier and depositing it here as smooth cobble.
This kame covers only 11 of Blackwell Forest Preserve's 1,300 acres, but the true measure of its worth lies in its biological richness. More than 270 different kinds of plants grow here, making this kame one of the county's most diverse natural areas. Forest Preserve District ecologists and volunteers are working to restore this natural wonder to its full potential.
Erected by Forest Preserve District of DuPage County.
Topics. This historical marker is listed in these topic lists: Environment • Horticulture & Forestry • Parks & Recreational Areas • Science & Medicine.
Location. 41° 49.716′ N, 88° 10.57′ W. Marker is in Warrenville, Illinois, in DuPage County. It is on Main Drive north of Butterfield Road (Illinois Route 56), on the right. The marker is in Blackwell Forest Preserve, just east of the parking lot near the main entrance at Butterfield Road. Touch for map. Marker is in this post office area: Warrenville IL 60555, United States of America. Touch for directions.
Regionally, this marker is in Greater Chicago. It is also in the American Midwest and on the Great Lakes. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once the territory of the Mississippian Culture and also the Northwest Territory.
Other nearby markers. At least 8 other markers are within walking distance of this marker: Welcome to the Founders Memorial (approx. 0.4 miles away); Seraph Warren Holmes (approx. 0.4 miles away); The Veteran's Memorial (approx. 0.4 miles away); Warrenville Veterans Memorial (approx. 0.4 miles away); Warrenville World War I Memorial Rock (approx. 0.4 miles away); Recipe for a River (approx. half a mile away); A Dam Struggle (approx. half a mile away); Gathering at the Gristmill (approx. half a mile away). Touch for a list and map of all markers in Warrenville.
Also see . . .
1. Britannica: Kame definition.
(Submitted on June 10, 2025, by Sean P. Flynn of Oak Park, Illinois.)
2. Blackwell Forest Preserve official site.
Excerpt: "Visitors at Blackwell walk on land shaped by the retreating Wisconsin Glacier 12,000 to 15,000 years ago. After the glaciers retreat, savannas with widely-spaced oak trees formed on the higher ground while the lower-lying ground became home to marsh and prairie plants. At Blackwells McKee Marsh, the 13,000-year-old skeleton of a woolly mammoth one of the oldest finds of its kind in northeastern Illinois was discovered in 1977."(Submitted on June 10, 2025, by Sean P. Flynn of Oak Park, Illinois.)
Credits. This page was last revised on June 10, 2025. It was originally submitted on June 10, 2025, by Sean P. Flynn of Oak Park, Illinois. This page has been viewed 137 times since then and 22 times this year. Photos: 1, 2. submitted on June 10, 2025, by Sean P. Flynn of Oak Park, Illinois.

