Two important caves have been found during quarrying at Steetley just to the west of Worksop.

Steetley Wood cave seems to have been exposed in 1926 and no longer exists today. Fossil bone found at this cave included remains of wolf, fox, bear, reindeer and bison. These bones provide a picture of animals living in the Worksop area during the early stages of the last Ice Age about 70,000 years ago.

Steetley Quarry Cave was found at the back of the brickworks in 1976. This cave contained a large number of animal bones dating to after the Last Ice Age 10,000 years ago. Spectacular finds are the two jaws of lynx. A flint microlith indicates human activity at this time.

See the Bison Horn Core found at Steetley Wood Cave.