Pitheadgear:
Haigh Cemetery, Wigan glacial boulder monument
Pitheadgear:
Worden Hall, Leyland, porphyry erratic from Helvellyn
Pitheadgear:
Glacial erratic boulder, Astley Green, Lancashire
Pitheadgear:
Glacial erratic boulder, Astley Green, Lancashire
Pitheadgear:
20 ton glacial erratic, Borrowdale Andesite, Manchester Museum