Families in Williamson County's Grassland area are warned to avoid Cartwright Creek due to raw sewage leaking from the ...

Limestone. The thinking at the time was that removing some of that limestone along a four-mile stretch in Illinois would drain the swamp, much like removing a limestone logjam.

Customers seen dining inside the Swamp Cave, which is 400 million years old, at the Batu Caves limestone hill. StarMetro report on March 15, 2024.