[1][2] During the Triassic period of geological time, some 230 million years ago, the limestones now exposed on Mendip formed upland areas upon which a number of large rivers rose.

Solution cavities were soon created in the land surface and material from the surrounding area was swept into the newly formed cave systems.

Remains of the creatures living in the upland areas during this time were swept into these deposits and have now been exhumed by recent quarrying activities.

Fresh material is brought to the surface with every rock fall and Emborough Quarries are a nationally important source of fossil vertebrate remains for research and study.

[3] This former Mendip quarry site, probably owned by Emborough Stone Co., a branch of Roads Reconstruction, Ltd., where iron ore was once mined[4] is now home to an assembly of contractor's plant (possibly of Richard Wood (Engineering) Ltd), cranes and machine tools.