Maenofferen Slate Mine, ( Part Three )

Most of the video in filmed on floor B and shows the miners steps specifically made for the workmen to get underground.
Maenofferen was first worked for slate by men from the nearby Diphwys quarry shortly after 1800.
Underground production at Maenofferen ceased during November 1999 and with it the end of large-scale underground working for slate in north Wales.
Source Wikipedia

Видео Maenofferen Slate Mine, ( Part Three ) канала Patterdale Mine & Cave