Colliery shown and annotated on first edition OS 25in map of 1875, but site shown as cleared by the second edition of 1900. John Calvert's winding and pumping beam engine of 1845 was moved from here to Forest House (now University of Glamorgan, Pontypridd) around 1913.
B.A.Malaws, RCAHMW, 05 November 2005.