OS 1st edition 25in mapping shows the circular entrance to the pit along with a spoil tip to the west and a tramroad heading south-southeast to Landshipping Quay (NPRN 518775). Modern aerial photography shows a small clump of trees in the corner of the field. All Wales LiDAR reveals that the bank sloping down to the mouth of the pit is still extant.
Sources inlude:
All Wales LiDAR 2m resolution, Environment Agency 2012
NAW Aerial Photography 2006-9
OS 1st edition 25in mapping 1868
