South Crofty

Overview

South Crofty, at Pool near Camborne, was Europe's last working tin mine when it closed in 1998 — not because its ore had run out, but because world tin prices had collapsed. Unlike most of Cornwall's mines, it was never sealed and abandoned, and its owner is now working toward reopening it as a producing mine once again.

History

Mining evidence at the site dates to 1592, with full-scale working under way by the mid-17th century; the mine was originally known as Penhellick Vean before later consolidation with neighbouring workings under the South Crofty name. Francis Bassett obtained the lease in 1710 and began driving a drainage adit. The mine worked chiefly for copper through the early 19th century — as East Wheal Crofty from 1822 to 1833 — before shifting to tin as its main product from the 1860s and 1870s. Production was interrupted in 1896 when the mine was suspended and allowed to flood, but it reopened in 1899 and absorbed the neighbouring New Cooks Kitchen mine. South Crofty Limited was incorporated in 1906, and the mine went on to absorb the historic Dolcoath mine in 1936. Output grew steadily through the 20th century, passing 92,000 tons of ore a year by 1959 and 100,000 tons by 1968. The collapse of the International Tin Agreement in October 1985 sent world tin prices into freefall, and the mine passed through Charter Consolidated and Rio Tinto Zinc ownership before its mill was progressively shut down from 1988, with ore sent instead to Wheal Jane for processing. Closure was announced in August 1997 and the mine finally closed in March 1998, ending some 400 years of recorded mining on the site — Europe's last primary tin mine.

Geology

The mine's workings extend across roughly 40 tin- and copper-bearing lodes beneath Camborne and Pool, reaching depths of around 3,000 ft (roughly 910 m) and spanning nearly 2.5 miles laterally.

Workings

Because tin prices, not ore exhaustion, forced closure in 1998, the underground workings were deliberately left unsealed rather than being abandoned outright — a decision that later proved central to reopening plans, since flooded and sealed mines are far more costly to bring back into production.

Closure

The mine closed in March 1998 after a sustained fall in world tin prices, following the October 1985 collapse of the International Tin Agreement, made continued extraction uneconomic.

What remains

A succession of companies have pursued reopening since 2001. Cornish Metals Inc (formerly Strongbow Exploration, which acquired the site from administration in March 2016) received a dewatering permit from the UK Environment Agency in October 2017 and commissioned a water treatment plant in October 2023, with active dewatering beginning that November. In January 2025 the UK government announced £28.6 million of investment to support the reopening, with commercial production currently targeted for around 2028, subject to construction, dewatering, shaft refurbishment and securing final financing. UNESCO called for a halt to reopening work in November 2012 pending an impact assessment, given the site's location within the Cornwall and West Devon Mining Landscape World Heritage Site.

Surviving surface structures include Robinson's engine house and shaft; underground workings remain substantially intact and unsealed.

Redevelopment

An active reopening programme is under way, targeting commercial tin production around 2028 and, if successful, an estimated 300 direct jobs plus wider regional economic benefit.

Abandoned workings can be dangerous — unstable ground, uncapped shafts, flooding and bad air are common even where a site looks safe from the surface. This entry describes history and general location only; it is not an access guide.

Recorded claims

Individual factual claims, each attached to the source(s) that support it below. Where sources disagree, both are kept.

• South Crofty closed in March 1998 because tin prices had collapsed, not because the ore had run out; the underground workings were deliberately left unsealed rather than abandoned. ¹
• In January 2025 the UK government announced £28.6 million of investment supporting the mine's reopening, with commercial tin production currently targeted for around 2028. ²
• A 2008 report on Robinson's Shaft describes the winding house as roofless and deteriorating despite being otherwise complete, and the bathhouse as retaining period fittings including a lamp rack, 1970s safety posters and showers. (uncertain) ³

Photographs & further reading

This page doesn't try to reproduce everything — these are the best original sources found for this mine.

Images

Sources

1. (secondary) South Crofty — Wikipedia
2. (secondary) South Crofty tin mine restart: Cornwall's path to 2028 production — Discovery Alert
3. (observational) South Crofty, Robinson's Shaft — 28DaysLater