Reference | Title | Date |
RHP146000 | National Coal Board Inspectorate plans of workings | 1957- |
RHP146000/891 | Plans of workings at Ordnance Survey National Grid Reference NT 36/3866 Castle Mine, Main Mine, Stair Mine, Oxenford No.2 Colliery, Tynemount Colliery, Oxenford No.3 Mine, Fordel Dean, The Temple and North Lodge named on these plans. | [20th century] |