About 12,000 years ago, the last of the towering glaciers that covered parts of what is now Chicagoland began melting. As one of the massive glaciers melted, a water-filled depression was left in its wake. The depression eventually developed into a deep 50-acre lake that had steep banks and poor drainage. About 6,000 years ago, … Continue reading Volo Bog: An Ice Age Remnant and the Only Quaking Bog in Illinois
Nature in Chicagoland. 