Opened commercially in 1887 it became one of Wales most productive gold mines, producing over 45,000 ounces of Welsh gold before closing in 1998.

A small metal mine worked intermittently from around 1700 until it closed in 1903, producing modest amounts of lead, silver, zinc, and copper

The former Grange Cavern, once a wartime arms store and later a major underground museum, now lies silent after its scattered collection and unresolved missing artefacts.

Once the world’s deepest anthracite mine, this former colliery became a museum but has been closed since 2021 due to major structural and safety issues.

Penarth and Cambrian Slate Mines were crucial Welsh operations, evolving from early extraction into significant industrial sites before their mid-20th-century closures.

Former Lead mine beneath High Tor in Matlock later used for pigment production.

An underground Limestone quarry spanning over 35 Kilometers.

A remote sea cave on the Pembrokshire coast, home to some of the best cave formations in the UK.

A former underground coal mining museum.

A former underground ammunitions depot.

A former limestone quarry in Wiltshire.

A mixed-mine that had been worked for lead, barytes, and fluorspar, closing in 1998.

Former Lead mine dating back to 1869.

A small cave system residing near the popular Chrome Hill.

A 19th-century slate quarry, known for its extensive underground workings and rugged mountain setting.

An 18th century Bath stone mine

The largest underground stone quarry in the UK.

The last working mine in Derbyshire known for producing Fluorspar.

A Northern stone mine first worked in 1841.

A part natural, part mined cavern in Derbyshire. known for its impressive size and connecting systems.