NI Social 8 October 2026

Header photograph by Rossographer, CC BY-SA 2.0.

The gold at Curraghinalt, near Greencastle in the Sperrins, is the largest known gold deposit in the United Kingdom, and by a long way. It is not one of the largest in the world. Everything found there so far adds up to about 190 tonnes of gold in the ground, about three weeks of what the world’s mines produce. None of it has been mined yet: the planning application, lodged in November 2017, is still before a public inquiry.

Northern Ireland’s gold comes up often online, sometimes with claims that other countries might want it badly enough to invade, or that Queen’s University is involved. We checked each claim against company filings, the planning record, government and parliamentary papers and the universities. Here is what holds up, what partly does, and what we found no evidence for. Figures were checked on 8 October 2026.

The short answer

  • Largest in the world? No. It is the UK’s largest known gold deposit, and its gold is unusually concentrated. By size it is small on a world scale: single mines in Uzbekistan and Russia each hold reserves of more than 1,200 tonnes.
  • Mined yet? No. A public inquiry into Dalradian Gold’s plans is due to finish hearing evidence on 12 November 2026. There is no date for a decision.
  • Whose gold is it? The Crown’s. Gold and silver in Northern Ireland belong to The Crown Estate, which would take a 4% royalty.
  • Would anyone invade for it? We found no evidence that any country sees Northern Ireland, or its gold, as a target. Gold is not on the UK’s or the EU’s list of critical minerals. The threats that officials do describe around these islands are to undersea cables and pipelines.
  • Who is interested? The documented foreign interest is American and commercial. The mine’s owner is a New York investment firm, and US politicians and diplomats have pressed for a decision.
  • Queen’s University? Only indirectly. The clearest link is that the US Ambassador to the UK called for a fast decision on the mine in a speech at a dinner held at Queen’s.

Where the gold is

Curraghinalt is a townland in the Sperrin hills about 5 km east of Gortin and close to Greencastle, about 115 km west of Belfast. The gold sits in thin quartz veins in Dalradian rocks, schists between 650 and 600 million years old, near a major fault called the Omagh Thrust. The gold arrived about 460 million years ago, carried by hot fluids during mountain building, and filled cracks opened by earth movements.

It was discovered in 1983, when soil samples showed unusual levels of arsenic, a common sign of gold. Gold has been recorded in Northern Ireland for centuries: the earliest account is of gold in the Moyola River in 1652.

How big is it?

The last published estimate of the gold in the ground is from 2018, prepared to the Canadian NI 43-101 standard by the consultants SRK. Mining companies sort their estimates into “resources” (gold they believe is there) and “reserves” (the part shown to be worth mining). Almost all of Curraghinalt’s published figures are resources.

Category (2018) Rock Grade Gold In tonnes
Measured and indicated 6.34 million tonnes 15.0 g/t 3.06 million oz 95 t
Inferred (least certain) 7.72 million tonnes 12.2 g/t 3.04 million oz 95 t
Total 14.1 million tonnes 6.1 million oz about 190 t

A troy ounce is 31.1 grams, so there are 32,151 troy ounces in a tonne.

What the company actually plans to dig is smaller. Dalradian’s application is for a mine running at least 20 years that would produce about 3.5 million ounces (about 109 tonnes), or roughly 155,000 ounces (about 4.8 tonnes) a year.

Against the world:

  • The world’s mines produced about 3,300 tonnes of gold in 2025, and world reserves are about 66,000 tonnes (US Geological Survey, 2026).
  • Curraghinalt’s whole estimate, about 190 tonnes, equals about three weeks of world mine output. The planned 4.8 tonnes a year would be about 0.15% of it.
  • Single deposits elsewhere are far bigger. Muruntau in Uzbekistan has reserves of about 1,275 tonnes and Sukhoi Log in Russia about 1,350 tonnes, each more than six times everything estimated at Curraghinalt.
  • For another yardstick, the UK government holds about 310 tonnes of gold (Bank of England, September 2026).

So the “one of the largest in the world” claim does not hold. What does hold is narrower. It is the largest known gold deposit in the UK: a report commissioned by the Department for the Economy calls it the UK’s largest “by some margin”. And its gold is unusually concentrated, at about 15 grams per tonne of rock in the best-known part, where many large open-pit mines work rock with 1 to 2 grams per tonne.

The company has long said Curraghinalt ranks seventh by grade among more than 500 undeveloped gold deposits worldwide. Dalradian gave that ranking in evidence to an Assembly committee in 2014 without saying where it came from, and we found no independent ranking that confirms it. Grade also falls once mining begins: the 2018 report notes the veins average only about half a metre thick and its figures do not allow for the waste rock mined alongside them. At realistic mining widths its own tables show the grade falling to about 9 to 11 grams per tonne. Against other underground gold mines, which commonly work rock at around 8 to 11 grams, that is good rather than exceptional.

What would it be worth?

At the Royal Mint’s price of about £3,117 per troy ounce on the afternoon of 8 October 2026:

  • the 3.5 million ounces Dalradian plans to mine would be worth about £10.9 billion before any costs;
  • the whole 2018 estimate, including the least certain part, about £19 billion.

In April 2026 Dalradian estimated the minerals it wants to extract at around £26 billion (The Detail); in 2019 the company put its gold at about £6 billion (Irish Times). Most of the rise is the gold price, not new gold.

Value in the ground is not profit. Mining, processing, building the mine, the Crown’s 4% royalty, a metals stream already sold to Wheaton Precious Metals, tax and the time it takes all come out first. When the company last published full economics, in 2016, it valued the mine at about a sixth of the gross value of the gold it planned to recover.

Who owns the gold?

Not the landowner, and not Stormont. In Northern Ireland, gold and silver are “Mines Royal”, owned by The Crown Estate, which passes its profits to HM Treasury. The Crown Estate grants options and, once a company has planning permission, a lease. Dalradian holds options over six areas running to 31 December 2031. It does not yet hold a lease. Other minerals are licensed by the Department for the Economy, and a company still needs the landowner’s permission to work on any land.

Dalradian is owned by funds managed by Orion Resource Partners, a New York investment firm that bought it in 2018.

Where the mine application stands

Date What happened
November 2017 Dalradian applies to build an underground mine and processing plant (reference LA10/2017/1249/F).
September 2019 Revised plans remove cyanide from every part of the process.
September 2021 The then Infrastructure Minister asks the Planning Appeals Commission to hold a public inquiry, covering the mine, about 37 km of power lines mostly through the Sperrin Area of Outstanding Natural Beauty, water licences and the closure of a road.
January 2025 Hearings open, then stop after three days because the Irish government had not been formally consulted about effects across the border.
April 2026 Hearings resume at the Strule Arts Centre in Omagh.
12 November 2026 Hearings due to end. The Commission then reports, and the decision falls to the Department for Infrastructure.

More than 50,000 objections have been lodged, the most for any planning application in Northern Ireland’s history (The Detail). Objectors, including Fermanagh and Omagh District Council, raise risks to rivers that carry Atlantic salmon and freshwater pearl mussels, dust from a waste rock and tailings store described at the inquiry as up to 17 storeys high, the chance of a tailings failure in heavy rain, lorry traffic on narrow roads, and harm to tourism in the Sperrins. The Loughs Agency told the inquiry that a catastrophic failure could harm salmon in the Owenkillew; Dalradian says there is no credible way for that to happen.

Dalradian says the mine would create about 1,000 direct and indirect jobs, at least 350 of them permanent, at an average salary of £45,000, and fund at least £4 million for the community. It says there would be no cyanide and no smelting on site, waste would be stored dry rather than in a lagoon, and water would be treated before release. Some local people support the jobs and investment.

Would anyone invade Northern Ireland for its gold?

We found no evidence of it. We searched the UK’s Strategic Defence Review (2025), the National Security Strategy (2025), the Defence Investment Plan (2026), parliamentary debates and written questions, and reports from defence think tanks. None names Northern Ireland, or its gold or minerals, as a target for seizure. In the Commons statement on Russian submarine activity in April 2026, gold and minerals were not mentioned once. Northern Ireland is part of the UK and covered by NATO.

Gold is also not what governments worry about. It is not on the UK’s list of 34 critical minerals (2025) or the EU’s list of 34 critical raw materials. Curraghinalt does contain small amounts of three minerals that are on the UK list, tellurium, antimony and bismuth. A Department for the Economy report estimates the mine could produce 3 to 4 tonnes of tellurium a year, but only as a by-product of gold. Dalradian itself told the inquiry that 99% of the mine’s value would come from gold.

History points the same way. Past plans to invade Ireland, from Spanish and French landings centuries ago to a German plan drawn up in 1940, were about ports and geography in wars with Britain, not about anything in the ground.

What officials do warn about is real, but it is under the sea. Russia’s specialist ship Yantar was tracked near undersea cables in the Irish Sea off Dublin in November 2024, and in November 2025 directed a laser at an RAF aircraft monitoring it. UK forces tracked Russian submarines for more than a month in spring 2026. Northern Ireland relies on a gas pipeline from Scotland for almost all its gas, and on undersea power and data cables. The UK and Ireland signed a new defence agreement in March 2026 focused on protecting exactly that.

Who is interested in the gold?

The foreign interest that is on the record is American, commercial and diplomatic.

  • The mine’s owner, Orion, is a New York investment firm. A Canadian metals company, Wheaton Precious Metals, has agreed to buy a share of any future gold.
  • In April 2025 Dalradian wrote to the UK Ambassador to the United States, calling the project “the single largest US investment in the history of Northern Ireland” and linking critical minerals to national security. The Ambassador then wrote to the head of the Northern Ireland Civil Service asking for a timely decision (letters released under freedom of information).
  • Four members of the US Congress wrote to the Executive Office in late 2024 urging a decision.
  • In November 2025 the US Ambassador to the UK said “unnecessary delays” over the mine were “harming” Northern Ireland’s reputation and that a decision was needed “fast”.

So the “national security” framing around Tyrone gold has come from the company’s own lobbying, not from any government threat assessment. We found no Chinese or Russian state-linked stake in Northern Ireland’s gold. Elsewhere, the small Omagh gold mine has just been sold in full to Ocean Partners UK, and an exploration venture in County Armagh is partnered with a Turkish company.

Is Queen’s University involved?

Not in the mine itself. We found no research partnership, funding or study of the mine by Queen’s. The links are indirect:

  • The ambassador’s speech. The US Ambassador’s call for a fast decision was made at a Belfast Chamber dinner held at Queen’s in November 2025. Queen’s was the venue, not a party to it.
  • Critical minerals. In 2023 the Department for the Economy commissioned Queen’s Business School to gather views on sourcing critical minerals responsibly in Northern Ireland. Its terms do not mention gold, Tyrone or the Sperrins.
  • Critical voices. Queen’s Centre for Sustainability, Equality and Climate Action hosted a 2022 event with a speaker from the Save Our Sperrins campaign, and a 2023 paper by the centre’s director described gold mining in the Sperrins as “exploitative resource extraction”.
  • A graduate who chaired the company. A former chairman of Dalradian Resources, a Queen’s graduate, sits on Queen’s Business School’s advisory board.
  • Older science. A 2004 paper by a Queen’s geology author tested gorse bark as a way to find gold, using Curraghinalt as a test site, and Queen’s took part in the Tellus Border survey of soils from 2010 to 2013.

The main scientific work on the deposit comes from elsewhere: the Geological Survey of Northern Ireland and the British Geological Survey, and universities including Aberdeen, Durham and Edinburgh.

Is there already a gold mine in Northern Ireland?

A small one. Galantas Gold’s mine at Cavanacaw, west of Omagh, produced small amounts of gold from 2007 (6,479 ounces in 2011, for example) and later ran underground trials, but never declared commercial production. Since September 2026 it has been wholly owned by Ocean Partners UK. Its estimated gold, about 350,000 ounces, is around a seventeenth of Curraghinalt’s.

Words that get mixed up

  • Gold reserves can mean two different things: gold a central bank holds in a vault, like the UK’s 310 tonnes, or gold proven worth mining in the ground.
  • Resource and reserve: a resource is gold believed to be there; a reserve is the part shown to be worth mining.
  • Grade is how concentrated the gold is, in grams per tonne of rock. A high-grade deposit is not the same as a large one.
  • A troy ounce is 31.1 grams, the standard unit for gold.

How we did this

We read the 2018 technical report, the company’s own statements and its stream partner’s filings; the planning record, the Planning Appeals Commission’s inquiry page and Department for Infrastructure papers; The Crown Estate’s and the Department for the Economy’s licensing pages; the US Geological Survey and Bank of England figures; UK defence and security documents, Hansard and parliamentary questions; and Queen’s University’s own pages and publications. Every figure was checked a second time by a separate reviewer against the original source. The gold price changes daily, so all values are given at 8 October 2026.

Questions people ask

Does County Tyrone have one of the largest gold reserves in the world?
No. The Curraghinalt deposit near Greencastle is the largest known gold deposit in the UK, but its whole published estimate, about 190 tonnes of gold (2018), equals about three weeks of world mine output. Single mines in Uzbekistan and Russia each hold reserves of more than 1,200 tonnes.
Where is the gold in County Tyrone?
At Curraghinalt, a townland in the Sperrins about 5 km east of Gortin and close to Greencastle, about 115 km west of Belfast. The gold is in thin quartz veins in Dalradian rocks near the Omagh Thrust fault. It was discovered in 1983.
How much gold is at Curraghinalt?
The last published estimate (SRK, 2018) is about 6.1 million troy ounces, or about 190 tonnes, half of it in the least certain 'inferred' category. Dalradian's application is to mine about 3.5 million ounces (about 109 tonnes) over at least 20 years.
Who owns the gold in Northern Ireland?
The Crown. Gold and silver in Northern Ireland are 'Mines Royal', owned by The Crown Estate, which passes its profits to HM Treasury. Dalradian holds Crown Estate options running to 31 December 2031 but no lease, and a 4% royalty would be payable on production.
Has the Tyrone gold mine been approved?
No. Dalradian Gold applied in November 2017. A public inquiry by the Planning Appeals Commission is due to finish hearing evidence on 12 November 2026; the Commission then reports and the Department for Infrastructure decides. No decision date has been set.
How much is the Tyrone gold worth?
At about £3,117 per troy ounce (8 October 2026), the 3.5 million ounces Dalradian plans to mine would be worth about £10.9 billion before any costs, and the whole 2018 estimate about £19 billion. That is value in the ground, not profit: mining, processing, building the mine, the Crown's royalty, tax and the time it takes all come out first.
Is gold a critical mineral?
No. Gold is not on the UK's list of 34 critical minerals (2025) or the EU's list of 34 critical raw materials. Curraghinalt does contain small amounts of tellurium, antimony and bismuth, which are on the UK list, but Dalradian told the inquiry that 99% of the mine's value would come from gold.
Could another country invade Northern Ireland for its gold or minerals?
We found no evidence of any such threat in UK defence and security documents, parliamentary debates or defence think tank reports. Northern Ireland is part of the UK and covered by NATO. The threats officials do describe around these islands are to undersea cables and pipelines.
What does Queen's University have to do with the Tyrone gold mine?
Only indirect links. The US Ambassador to the UK called for a fast decision on the mine in a speech at a Belfast Chamber dinner held at Queen's in November 2025; a former chairman of Dalradian Resources sits on Queen's Business School's advisory board; and academics at Queen's have been critical of the mine. We found no research partnership or funding between Queen's and the mine.
Will the Tyrone gold mine use cyanide?
No, according to the current plans. The Department for Infrastructure says revised proposals in September 2019 removed cyanide from every part of the process, and Dalradian told the inquiry it has no intention of using it. The original 2017 plans did include it.
Is there already a gold mine in Northern Ireland?
A small one: Galantas Gold's mine at Cavanacaw, west of Omagh, produced small amounts of gold from 2007 and later ran underground trials but never declared commercial production. It has been wholly owned by Ocean Partners UK since September 2026.

Sources