21stCenturyNorth.com:
37a Barnsley Main Colliery
21stCenturyNorth.com:
10 Lead mining vent, North Yorkshire
21stCenturyNorth.com:
25 Standing stone
21stCenturyNorth.com:
18 Quarry near Wath, North Yorkshire
21stCenturyNorth.com:
36 Barnsley Main Colliery wall
21stCenturyNorth.com:
01 Lead mining vent, North Yorkshire
21stCenturyNorth.com:
35a Barnsley Main Colliery
21stCenturyNorth.com:
24 Standing stone
21stCenturyNorth.com:
04 Lead mining vent, North Yorkshire
21stCenturyNorth.com:
30 Barnsley Main Colliery
21stCenturyNorth.com:
15a Track near Greenhow, North Yorkshire
21stCenturyNorth.com:
09 Lead mining vent, North Yorkshire, inside
21stCenturyNorth.com:
12 Lead mining level, North Yorkshire
21stCenturyNorth.com:
14 Lead mining remains, North Yorkshire
21stCenturyNorth.com:
28a Standing stone
21stCenturyNorth.com:
02 Lead mining vent, North Yorkshire