Global Gold Deposits Map: Main Belts and Top 10 Mines

Many of the world’s largest gold clusters sit in a short list of belts and basins: the Witwatersrand in South Africa, the Carlin Trend in Nevada, the Yilgarn Craton in Western Australia, the Ontario and Quebec greenstone belts in Canada, and the Kyzylkum and Siberian mines of Central Asia and Russia. The USGS estimates 2025 world mine output at 3,300 tonnes, led by China (380 t), Russia (310 t) and Australia (280 t). This page puts those places on one map-style guide: the main belts, the largest mines by 2025 output, production and reserves by country, where diamonds sit, and which official databases give you a detailed deposit map.

Where are the world’s gold deposits? The main belts on the map

A global gold deposits map is really a map of old, stable crust and the faults that cut it. Gold needs a source of hot fluid, a plumbing system (faults and shear zones) and a trap. That is why the big clusters follow ancient cratons (the stable, very old cores of continents), mountain belts and a few giant sedimentary basins. The table lists the clusters readers search for most, with one sourced scale figure for each. “Endowment” means gold already mined plus gold still in the ground.

“Moz” is million troy ounces and “koz” is thousand troy ounces. One troy ounce is 31.1035 grams, and one tonne holds about 32,150 troy ounces. Resource figures change as companies drill, so check the latest technical report before you quote a deposit total. Zimbabwe’s greenstone belts are one of Africa’s older gold regions.

▶ Farmonaut documentary: the modern gold rush across Africa, South America and Central Asia. · 10:44

Large gold deposits and mines: the top 10 by yearly output

A deposit is the gold in the ground; a mine is the operation that digs it. The largest mines by yearly output are not always the largest deposits, because output depends on plant size and grade. The ranking below uses 2025 output in thousand troy ounces (koz) on a 100% basis, from the operators’ own 2025 reports wherever they publish mine-level figures (Barrick, Newmont, Agnico Eagle, Freeport-McMoRan and Polyus). Muruntau and Almalyk do not, so those two come from S&P Global data reported by Mining.com (March 2026). Nevada Gold Mines is the world’s largest gold mining complex by 2025 output: Barrick reports 2,587 koz for the Carlin, Cortez, Turquoise Ridge and Phoenix operations combined, a joint venture in which Barrick holds 61.5%. For a wider look at the operators behind these mines, see the top 20 gold mining companies by output and the largest gold mines in the world.

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Top 10 gold mines by 2025 output

Thousand troy ounces (koz), 100% basis

How we chose. We ranked single mines or mine complexes by reported 2025 gold output, because that is the metric people mean when they search for the biggest mines. Output is not reserves, and it moves from year to year. Grasberg, for example, fell by half in 2025 (937 koz against 1,861 koz in 2024). Kazzinc in Kazakhstan is not ranked: Glencore reports 543 koz of gold from its own mines in 2025, and the 947 koz sometimes quoted is smelter output including third-party feed. Detour Lake’s 693 koz and Canadian Malartic’s 643 koz are Agnico Eagle’s payable ounces, and Pueblo Viejo’s 632 koz is Barrick’s 100% figure. Kibali’s 674 koz on a 100% basis comes from Barrick’s statistics, and Ahafo South’s 664 koz from Newmont’s, where the separate Ahafo North segment added 70 koz. Uzbekistan’s Navoi Mining reported 3.15 Moz for the whole company in 2025, of which Muruntau is the largest part. China, the largest producer at an estimated 380 t in 2025 (USGS), publishes little mine-level data, so it appears in this guide by country only. The next mine below the top 10 is Kumtor in Kyrgyzstan at 592 koz (S&P Global data via Mining.com).

Largest gold deposits by gold content

Deposit size is the gold in the ground, mined plus remaining, and it is a different ranking from yearly output. The figures below are not on one basis, so the last column says whether each is gold already mined or a resource.

The Yilgarn Craton around the Golden Mile has an endowment above 324 Moz, so the craton as a whole is a much larger gold province than any single mine in it.

In the United States, Nevada produced about 64% of national output and Alaska about 22% in 2025 (USGS, 2026). The state guide to gold deposits in the United States and the list of active gold mines in the USA go deeper, and the story of the California Gold Rush and later mine development shows how a placer discovery pulled in a whole region.

Gold production by country: who mines the most and who holds the reserves

Production tells you where mines run today; reserves tell you where the economic ore is expected to last. Reserves are the part of a resource that can be mined at a profit with current methods and prices, so they move with the gold price. The USGS table below is the most widely cited public comparison, and its 2025 values are estimates. The USGS puts world reserves at 66,000 tonnes, about 20 years of output at the 2025 rate. That is a simple ratio, not a forecast, because reserves grow when new ore is drilled out.

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Reserves against yearly output

Each dot is one of eight selected countries: reserves (tonnes) across, 2025 output (tonnes) up

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Gold mine production by country, 2025 estimate

Tonnes of contained gold, eight leading producers (Uzbekistan also mined 130 t)

Australia leads on reserves with 13,000 tonnes, followed by Russia with 12,000 tonnes, then South Africa (5,000 t) and Indonesia (3,600 t). China, Canada and the United States each hold about 3,000 to 3,200 tonnes. Output and reserves do not line up: China mines the most but holds fewer reserves than Australia or Russia, which is why reserve life differs so much by country (Australia about 46 years at its 2025 rate, Ghana about 7). The World Gold Council’s own estimate, built with Metals Focus, is 3,672 tonnes of mine production in 2025, a figure it says is subject to revision. It is higher than the USGS 3,300 tonnes because the two organisations count differently, so compare countries within one source and do not mix the two.

Canada is the fourth-largest producer. Natural Resources Canada records 200 tonnes in 2024, of which Ontario produced 79.9 t (40%), Quebec 55.5 t (28%), British Columbia 17.6 t (9%) and Yukon 6.0 t (3%). The provincial guide to Canada gold deposits by province maps each belt, the Atlantic region is covered in the report on a new gold mine in Newfoundland, and the page on top gold producing countries ranks more nations by tonnes.

▶ Farmonaut video: why Ontario produces about 40% of Canada’s gold and where prospectors look. · 2:53

Why gold sits where it does: deposit types behind the belts

Four deposit families explain most of the map. Knowing which one you are looking at tells you what a satellite, a soil survey or a drill can and cannot show.

• Orogenic gold (greenstone belts). Gold-bearing fluid moved along major faults while mountain belts were built. The Yilgarn Craton, the Ontario and Quebec belts and much of West Africa are of this kind. The Kalgoorlie Gold Field study in Geoscience Frontiers describes the Golden Mile as a giant example controlled by faults and alteration zones.
• Ancient placers (the Witwatersrand). Gold was concentrated in river-laid gravels that later became rock. One basin supplies the largest single block of gold mined so far.
• Carlin-type gold. Very fine gold sits in chemically altered carbonate rock. The gold is often too fine to see, so these deposits are tested with soil geochemistry and drilling rather than panning. The Carlin Trend is the type area.
• Porphyry and epithermal systems. Gold forms near volcanic arcs, often alongside copper. The USGS estimates that nearly a quarter of the gold in undiscovered US resources is in porphyry copper deposits. Our guide to epithermal gold deposits covers the shallow end of this family, and the Andes, Papua and Indonesia belong here.

There is also plenty left to find. The USGS assessment of US gold counts 33,000 tonnes in total, 15,000 identified and 18,000 undiscovered (USGS, 2026). South Africa’s old mining areas, with their deep Witwatersrand reefs, are covered in gold mining areas in South Africa.

How much gold is in a deposit? Grade, tonnes and value calculator

Grade is the gold content of the rock, measured in grams per tonne (g/t). Multiply it by the tonnes of ore and you get the contained gold. Tonnage is entered in Mt (million tonnes) and plant rate in Mt per year. Recovery is the share a plant actually extracts, and cut-off grade is the lowest grade that still pays to mine. The calculator on this page lets you enter the figures from any technical report and see the contained and recoverable ounces, the gross value and the number of years the ore would last. It is a screening tool: it leaves out mining cost, royalties, tax and dilution (waste rock mixed in with ore).

Gold price and the map: why mine locations change

When the price rises, lower-grade ground becomes ore and old districts reopen. The USGS series for the average gold price rose from US$1,801 per troy ounce in 2021 to US$3,300 in 2025 (estimate). The spot price on 28 October 2026 was US$4,046.81 per troy ounce at 7:16 AM ET, according to GoldPrice.com, which also shows it 25.1% below its January 2026 high. Spot prices change by the minute and reference prices differ by provider, so use the live figure from your own source in the calculator. Higher prices lift reserves and extend mine lives, but they also bring a wave of new claims, which matters when you check who already holds ground.

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Average gold price, United States series

US$ per troy ounce, annual average

Gold concentration map: reading geochemical survey data

A gold concentration map shows how much gold, or gold-linked elements such as arsenic, sits in stream sediment, soil or rock samples. It is not a map of mines. The USGS National Geochemical Survey database holds stream sediment and soil analyses for the US, with a target of one sample for every 289 square kilometres (USGS). That spacing is good for regional screening and far too wide to pick a drill hole. A strong anomaly (a value well above the local background) means “look here next”, and it must be followed by closer soil lines, mapping and drilling.

Diamond deposits map: where the world’s diamonds come from

A world diamond deposits map looks very different from a gold map. Diamonds form deep in the mantle and reach the surface in kimberlite pipes. The rule of thumb, known as Clifford’s Rule, is that diamond-bearing kimberlites erupt through the oldest, thickest parts of stable cratons. The GIA review of diamond geology notes the best-known exception: Australia’s Argyle, where diamonds came from lamproite on ground off the craton. Rivers then carry diamonds out of pipes into alluvial gravels, which is why Angola, Namibia and parts of South Africa produce from gravels and marine terraces as well as pipes. The USGS says natural diamond deposits have been found in more than 35 countries (USGS, 2026).

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Share of world rough diamond carats, 2024

Percent of volume, preliminary

By volume, seven countries account for 96% of rough diamond output. In 2024 (preliminary) Russia produced 34.6% of world carats, Botswana 16.8%, Angola 13.0% and Canada 12.3%, according to Natural Resources Canada, using Kimberley Process data. By value the order changes: Russia 35.0%, Angola 14.8%, Botswana 14.3%, Canada 11.3% and Namibia 10.1%. World output was 107.9 million carats in 2024. For the industrial grade only, the USGS lists natural industrial diamond output of 38 million carats in 2025 (estimate), with Russia at 16 million and the Democratic Republic of the Congo at 7 million. More mines, from gold to copper to diamonds, are profiled in the top gold, copper and diamond mines.

The gap between the two columns shows what the map does not: the DR Congo mines nearly one carat in ten but earns about 1% of value, while Namibia, with marine and coastal gravels, earns 10% of value from 2% of carats. Percentages are Natural Resources Canada preliminary 2024 data from the Kimberley Process.

Best online maps for gold and diamond deposits

No single global layer shows every mine with current status. These public databases are the usual starting points, and each has a limit you should know before you rely on it.

For Alaska, the USGS notes that the Alaska Resource Data File is the most coherent set of deposit reports. Outside these, each country’s mining cadastre shows who holds the ground, and our guide to mining cadastre portals by country lists them.

▶ Farmonaut video: how to read a satellite gold map properly and what it can and cannot show. · 1:40

How to check a deposit before you rely on a map point

1. Confirm the point is a real, current site. Compare the database entry with the operator’s latest annual report or technical report. Old records may show a mine that closed years ago.
2. Check resource categories. Measured, indicated and inferred resources are different levels of confidence, and reserves are a separate, higher step. Never add them together.
3. Check the tenure. A deposit on a map is not available ground. Search the cadastre for the licence holder, expiry date and any overlap.
4. Screen the surroundings. Look at rivers, protected areas and settlements near the target, because water and land use shape permits as much as geology does.
5. Add imagery as a screening layer. Satellite imagery cannot see gold itself. It can map surface minerals, alteration colours and fault lines that guide where to sample first, and its results are exploration targets that sit ahead of a resource estimate. See satellite-based mineral detection for the method, how to find gold deposits for field steps, or get a mining quote. For anything else, contact us.

If you go out to prospect, get the landowner’s and the regulator’s permission, hold the right licence, stay off other people’s claims and protected land, and never use mercury to recover gold.

Frequently asked questions

Where is most of the world’s gold found?

Most mined gold comes from China, Russia, Australia, Canada and the United States, with Ghana, Mexico, Kazakhstan, Uzbekistan and Peru close behind (USGS, 2026). Geologically, the largest concentrations are the Witwatersrand Basin, the Carlin Trend and the Yilgarn Craton.

Which country has the most gold reserves?

Australia, with 13,000 tonnes of reserves, followed by Russia at 12,000 tonnes (USGS, 2026). The United States, China and Canada each hold roughly 3,000 to 3,200 tonnes.

What is the largest gold mine in the world?

By 2025 output, Nevada Gold Mines in the United States, at 2,587 koz on a 100% basis, ahead of Muruntau in Uzbekistan at about 1,708 koz (S&P Global data via Mining.com). Navoi Mining says Muruntau has a resource base above 100 million ounces.

Where are gold occurrences (Goldvorkommen) found?

The Witwatersrand Basin in South Africa is the largest single source, with over 40,000 tonnes mined. The Yilgarn Craton in Western Australia has an endowment above 324 Moz, and the Carlin Trend in Nevada has produced over 100 Moz.

What is a gold concentration map?

It is a map of gold or related element values measured in stream sediment, soil or rock samples. It points to areas worth a closer look and does not show where a mine exists.

Where are diamond deposits found on the world map?

Mainly on old continental cores: the Siberian craton in Russia, southern and central Africa (Botswana, Angola, the DR Congo, South Africa, Namibia and Zimbabwe), and the Canadian Shield. Russia, Botswana, Angola and Canada produced about 77% of world carats in 2024 (preliminary, Natural Resources Canada).

Is gold mine production still growing?

The World Gold Council’s first estimate for 2025 is 3,672 tonnes, a hair above the 2018 record of 3,663 tonnes, and it warns that revisions could change that.

How can I see which gold mines are active?

Start with the operator’s latest annual report or quarterly operating statistics, then check a government database such as MINEDEX for Western Australia. The USGS deposit database is not kept up to date for status.

Can satellites show where gold is?

Not directly. Satellites measure surface minerals, vegetation and terrain. Those can point to alteration and structure linked to gold systems, and the result is a list of targets for sampling, not a measured resource.

Is there more gold left to discover?

Yes. The USGS assessment of the United States alone puts undiscovered gold at 18,000 tonnes, against 15,000 tonnes already identified.