/ /1889 | Bothwell Castle 3&4 colliery / Prior Colliery Opened by William Baird and Company. |
/ /1943 | Bothwell Castle 3&4 Colliery / Prior Colliery Government take over mine due to low output, mine re-constructed. |
/ /1959 | Bothwell Castle 3&4 colliery / Prior Colliery Closed, but retained as pumping station for Newton, Bardykes and Blantyreferme collieries. |