• Souterrains - man-made underground objects, artificial cavities, mines, quarries, and tunnels.
• Minet - European mining heritage network
• Mining in europe

• American Mining History Association
• Mining museum at Rossland, B.C.

Германия

• Tunnel and Shelter Researching
• GAG

• SUBTERRANEAN LIMESTONE QUARRIES

• Friends of Williamson's tunnels
• Dudley Limestone Caverns
• Blackhill Quarry
• NAMHO - The National Association of Mining History Organisations
• A Miner's Son - history of Derbyshire coal mines
• Bath Stone Mines (Quarries)
• British Mining Database
• Cumbria Ore Mine Rescue Unit
• Exeter Mining History Research Group
• The Industrial Archaeology of Halifax
• Mike Moore Bookseller - For specialist books in the areas of mining and industrial history; caving; and walking, travel and the outdoors
• Miner's Advice
• Mines Rescue (UK)
• Mining History Network
• National Coal Mining Museum
• Northern Mine Research Society
• Lead Mining in the Yorkshire Dales
• Peak District Mines Historical Society Ltd: Matlock Mining Museum
• Welsh Mines Society

• Mining Heritage Society of Ireland

• Paris Catacombs
• Paris Catacombs (еще одна)
• Miner's Lamp Collector Page (есть английская версия)

Норвегия

• Летучие мыши в пещерах и шахтах Норвегии