Oak Brook in DuPage County, Illinois — The American Midwest (Great Lakes)

Mammoth Spring

Photographed by Cindi Knox, July 26, 2010

1. Mammoth Spring Marker

Inscription. Largest in northeastern Illinois. Burst forth in 1861 and was used for domestic and irrigation purposes, pumping 150 gallons per minute, furnished through wood conduit, the total water supply for Elmhurst from 1889-1916. The original trough remained until 1970

Erected by Elmhurst Historical Society; Oak Brook Historical Society.

Topics. This historical marker is listed in this topic list: Natural Features. A significant historical year for this entry is 1861.

Location. 41° 51.186′ N, 87° 56.888′ W. Marker is in Oak Brook, Illinois, in DuPage County. It can be reached from Spring Road, on the right when traveling north. Next to a taxi stand in parking lot of the DoubleTree Hotel. Touch for map. Marker is at or near this postal address: 1909 Spring Road, Oak Brook IL 60523, 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 one mile of this marker, measured as the crow flies: Veterans Memorial (approx. 0.8 miles away); Veterans Day (approx. 0.9 miles away); Eldridge Park (approx. 0.9 miles away); Being Number 1 (approx. 0.9 miles away); a different marker also named Veterans Memorial (approx. 0.9 miles away); 9/11 Memorial Garden (approx. one mile away); StoryWalk (approx. one mile away); Melvin Jones (approx. 1.1 miles away). Touch for a list and map of all markers in Oak Brook.

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Photographed by Cindi Knox, July 26, 2010

2. Mammoth Spring Marker

Photographed by Cindi Knox, July 26, 2010

3. Mammoth Spring Marker

Mammoth Spring Marker Missing image. Click for full size.

Photographed by Jonathan Thorsness, May 29, 2023

4. Mammoth Spring Marker Missing

Photographed by Jonathan Thorsness, May 29, 2023

5. Mammoth Spring Marker Missing

Mammoth Spring Marker restored & reinstalled by the Oakbrook Terrace Historical Society image. Click for full size.

Photographed by Bob Shanahan, October 6, 2024

6. Mammoth Spring Marker restored & reinstalled by the Oakbrook Terrace Historical Society

Credits. This page was last revised on May 6, 2025. It was originally submitted on July 26, 2010, by Cindi Knox of Joliet, Illinois. This page has been viewed 3,198 times since then and 81 times this year. Photos: 1, 2, 3. submitted on July 26, 2010, by Cindi Knox of Joliet, Illinois. 4, 5. submitted on May 29, 2023, by Jonathan Thorsness of Oak Brook, 60523. 6. submitted on January 24, 2025, by Bob Shanahan of Oakbrook Terrace, Illinois. • Kevin W. was the editor who published this page.