<p>Quite a few cities were built overtop of ore deposits. They often started out as a series of small workings and larger, deeper deposits were found as the cities grew up to support the mining.</p>
<p>An example is Bendigo Australia where there were mines under the centre of town</p>
<p><a href="https://i.sstatic.net/1WKII.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/1WKII.png" alt="" /></a></p>
<p><a href="https://www.bendigoadvertiser.com.au/story/3863770/mining-set-to-resume-in-bendigo/#slide=3" rel="nofollow noreferrer">Mining has continued off and on with the most recent activity using a decline for trucks to reach the the ore at a depth of ~ 1km</a></p>
<p><a href="https://i.sstatic.net/KHaR0.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/KHaR0.jpg" alt="enter image description here" /></a></p>

CC BY-SA 4.0
2021-03-28T22:02:43.183Z
2021-03-28T22:02:43.183Z
haresfur
<p>If you don't mind loosening your definition of &quot;ore&quot; or changing it to include dimension stone, <a href="https://en.wikipedia.org/wiki/Lutetian_limestone" rel="nofollow noreferrer">limestone</a> was mined under <a href="https://en.wikipedia.org/wiki/Mines_of_Paris" rel="nofollow noreferrer">Paris</a>, France to provide material for the construction of buildings. The result of which is many nice buildings in Paris, but also a network of catacombs beneath the city.</p>
<p><a href="https://i.sstatic.net/WnXup.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/WnXup.jpg" alt="enter image description here" /></a></p>
<p>Not a mineral or a solid, but <a href="https://en.wikipedia.org/wiki/Los_Angeles_City_Oil_Field" rel="nofollow noreferrer">Los Angeles</a> is on top of an oil field that is actively being extracted.</p>
<p><a href="https://i.sstatic.net/mwhJY.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/mwhJY.jpg" alt="enter image description here" /></a></p>
<p>These days, the <a href="https://www.lamag.com/citythinkblog/hidden-oil-wells/" rel="nofollow noreferrer">oil rigs are hidden</a> within what appears to be <a href="https://99percentinvisible.org/article/hollywood-worthy-camouflage-uncovering-the-urban-oil-derricks-of-los-angeles/" rel="nofollow noreferrer">buildings</a>.</p>
<p>In Australia, <a href="https://visitsydneyaustralia.com.au/lost-coalmines.html" rel="nofollow noreferrer">Sydney</a> and many other cities and towns were established over coal fields.</p>
<p>There is also the <a href="https://Kupferschiefer" rel="nofollow noreferrer">Kupferschiefer</a> (copper shale) deposit of northern Europe, from the North Sea to Poland, which has been mined in Lubin, Poland.</p>

CC BY-SA 4.0
2022-12-04T09:09:15.193Z
2022-12-04T09:35:34.107Z
2022-12-04T09:35:34.107Z
Fred
<p>One example of an ore deposit that runs under a city is the banded iron formation ore in <a href="http://www.kiruna.se/English/">Kiruna</a>. In this case the ore has been mined outside of the city since the turn of the previous century. The ore has been found to run under the city and there are now plans to move the city <a href="http://www.kiruna.se/Stadsomvandling/City-in-transformation/">more detailed information</a>. This has led to a process where the city has to be re-established in a different location including moving a large number of historically significant buildings. </p>

<p>A similar situation is also present in Malmberget (about 120 km S of Kiruna), part of the twin town of Gällivare-Malmberget. In this case the plan is to have Malmberget inhabitants to move to Gällivare. The mining activities at Malmberget have resulted in several collapse features <a href="https://www.google.se/search?q=malmberget&amp;tbm=isch&amp;tbo=u&amp;source=univ&amp;sa=X&amp;ei=ECmZVNS2LKWmygPonYGQCw&amp;ved=0CDAQsAQ&amp;biw=1211&amp;bih=833">see images on this link</a>. There is also some information in English on the <a href="http://www.gallivare.se/sv/Nya-gallivare/Samhallsomvandling/">Gällivare web-site</a>.</p>

<p>In both cases there are significant restructuring of the societies. It is also worth noting that the definition of ore is economical which means that what is worth mining depends on market prices. In the case of Iron the market has been strong but has fluctuated significantly. The result is that the planning and decisions for a move such as these  are difficult since they are costly and depend on the market to be financially viable (it is the mining company that largely pays for the move).</p>

CC BY-SA 3.0
2014-12-23T14:42:10.247Z
I was thinking "there is that town in Sweden" - didn't realise it was a BIF :-) That will be good ore!
winwaed
CC BY-SA 3.0
2014-12-23T15:23:10.633Z
Reminds me of the mercury mind in Idrija, Slovenia. The mine grew from its humble beginnings, and now underlies the city.
Gimelist
CC BY-SA 3.0
2014-12-23T08:44:08.467Z
2014-12-23T08:44:08.467Z
Peter Jansson
<p>Occasionally there are news about a major ore deposit for a specific commodity being found. Some of these recent discoveries are underground, and the "geophysics" aspect of their exploration is more important than the "geology" aspect.</p>

<p>This makes me wonder—are there any such known ore deposits that have been found under cities? Some examples might be "the largest gold deposit ever, under Buckingham Palace" or "diamond bearing kimberlite pipe under Central Park in New York".</p>

CC BY-SA 3.0
2014-12-23T14:41:05.850Z
Not Buckingham Palace, but an oil exploration well was drilled under Windsor Castle in the 1990s using horizontal drilling!
winwaed
CC BY-SA 3.0
2014-12-23T14:53:47.383Z
Los Angeles was built on top of an oil field: http://en.wikipedia.org/wiki/Los_Angeles_City_Oil_Field
DA.
CC BY-SA 3.0
2014-12-23T15:09:17.597Z
Unless existing deposits near a city lead to suspicion if under the city there is something, I would not expect much prospection going on inside or near existing bigger cities, so even if there is a kimberlite pipe under central park, it is likely that it will not be discovered before most other places are depleted.
PlasmaHH
CC BY-SA 3.0
2014-12-23T15:13:55.850Z
@PlasmaHH actually I had this thought 5 seconds after hitting the submit button :)
Gimelist
<economic-geology><geography>
Are there known ore deposits under cities?
Gimelist
# Are there known ore deposits under cities?

(Asked by: username_0 on 2014-12-23)

Occasionally there are news about a major ore deposit for a specific commodity being found. Some of these recent discoveries are underground, and the "geophysics" aspect of their exploration is more important than the "geology" aspect.

This makes me wonder—are there any such known ore deposits that have been found under cities? Some examples might be "the largest gold deposit ever, under Buckingham Palace" or "diamond bearing kimberlite pipe under Central Park in New York".

**Tags:** economic-geology, geography

> **Comments:**
> **username_1**: Not Buckingham Palace, but an oil exploration well was drilled under Windsor Castle in the 1990s using horizontal drilling!  
> **username_2**: Los Angeles was built on top of an oil field: http://en.wikipedia.org/wiki/Los_Angeles_City_Oil_Field  
> **username_3**: Unless existing deposits near a city lead to suspicion if under the city there is something, I would not expect much prospection going on inside or near existing bigger cities, so even if there is a kimberlite pipe under central park, it is likely that it will not be discovered before most other places are depleted.  
> **username_0**: @username_3 actually I had this thought 5 seconds after hitting the submit button :)  

---

## 3 answers

### Answer by username_6 on 2014-12-23. Score: 17 | Accepted answer

One example of an ore deposit that runs under a city is the banded iron formation ore in [Kiruna](http://www.kiruna.se/English/). In this case the ore has been mined outside of the city since the turn of the previous century. The ore has been found to run under the city and there are now plans to move the city [more detailed information](http://www.kiruna.se/Stadsomvandling/City-in-transformation/). This has led to a process where the city has to be re-established in a different location including moving a large number of historically significant buildings.

A similar situation is also present in Malmberget (about 120 km S of Kiruna), part of the twin town of Gällivare-Malmberget. In this case the plan is to have Malmberget inhabitants to move to Gällivare. The mining activities at Malmberget have resulted in several collapse features [see images on this link](https://www.google.se/search?q=malmberget&tbm=isch&tbo=u&source=univ&sa=X&ei=ECmZVNS2LKWmygPonYGQCw&ved=0CDAQsAQ&biw=1211&bih=833). There is also some information in English on the [Gällivare web-site](http://www.gallivare.se/sv/Nya-gallivare/Samhallsomvandling/).

In both cases there are significant restructuring of the societies. It is also worth noting that the definition of ore is economical which means that what is worth mining depends on market prices. In the case of Iron the market has been strong but has fluctuated significantly. The result is that the planning and decisions for a move such as these are difficult since they are costly and depend on the market to be financially viable (it is the mining company that largely pays for the move).

> **Comments:**
> **username_1**: I was thinking "there is that town in Sweden" - didn't realise it was a BIF :-) That will be good ore!  
> **username_0**: Reminds me of the mercury mind in Idrija, Slovenia. The mine grew from its humble beginnings, and now underlies the city.  

---

### Answer by username_4 on 2021-03-28. Score: 2

Quite a few cities were built overtop of ore deposits. They often started out as a series of small workings and larger, deeper deposits were found as the cities grew up to support the mining.

An example is Bendigo Australia where there were mines under the centre of town

[![](https://i.sstatic.net/1WKII.png)](https://i.sstatic.net/1WKII.png)

[Mining has continued off and on with the most recent activity using a decline for trucks to reach the the ore at a depth of ~ 1km](https://www.bendigoadvertiser.com.au/story/3863770/mining-set-to-resume-in-bendigo/#slide=3)

[![enter image description here](https://i.sstatic.net/KHaR0.jpg)](https://i.sstatic.net/KHaR0.jpg)


---

### Answer by username_5 on 2022-12-04. Score: 1

If you don't mind loosening your definition of "ore" or changing it to include dimension stone, [limestone](https://en.wikipedia.org/wiki/Lutetian_limestone) was mined under [Paris](https://en.wikipedia.org/wiki/Mines_of_Paris), France to provide material for the construction of buildings. The result of which is many nice buildings in Paris, but also a network of catacombs beneath the city.

[![enter image description here](https://i.sstatic.net/WnXup.jpg)](https://i.sstatic.net/WnXup.jpg)

Not a mineral or a solid, but [Los Angeles](https://en.wikipedia.org/wiki/Los_Angeles_City_Oil_Field) is on top of an oil field that is actively being extracted.

[![enter image description here](https://i.sstatic.net/mwhJY.jpg)](https://i.sstatic.net/mwhJY.jpg)

These days, the [oil rigs are hidden](https://www.lamag.com/citythinkblog/hidden-oil-wells/) within what appears to be [buildings](https://99percentinvisible.org/article/hollywood-worthy-camouflage-uncovering-the-urban-oil-derricks-of-los-angeles/).

In Australia, [Sydney](https://visitsydneyaustralia.com.au/lost-coalmines.html) and many other cities and towns were established over coal fields.

There is also the [Kupferschiefer](https://Kupferschiefer) (copper shale) deposit of northern Europe, from the North Sea to Poland, which has been mined in Lubin, Poland.


---

