Devon being a county where I have spent a fair bit of time over the years, I noticed the piece at reference 1 about a mine there; a place called Hemerdon Mine, a little to the northeast of Plymouth.
Ordnance Survey search has not heard of the place, nor anywhere called Hemerdon, anywhere near Plymouth. I added the orange spot later, just off the B3417.
However, perusal of the map later did turn up various Hemerdons, a little to the south of the spot. So on the map, but not visible to search.
Gmaps found it straightaway. Tungston West marks the spot, with something called 'Walkies at Hemerdon', seemingly in the middle of a field full of solar panels, just below it.
An area which appears to be full of mines, open cast and otherwise. So whoever took the picture at the top of the post must have been very careful with his camera angles. I associate to the Riverford people, also in Devon, at reference 3. Another picture with a careful camera angle.
I associate to the Lake District, another place with both lots of outstanding natural beauty and lots of old mines. Lots of spoil heaps.
PS 1: Gemini thinks that Tungsten West thinks that this mine is a big deal - and our government appears to agree with them. Maybe the heritage people will just get pushed aside on this one.
I dare say it helps that the price of tungsten has risen - although a quick search did not turn up a decent, free source. But there is reference 7.
He also told me all about why OS struggles with the names of small places. I guess it is just not realistic to expect OS to be able to compete with Google in the search department. Nor is it in the business of providing a commercial directory, a sort of Kelly's with a map attached. In any event, I shall study Gemini's report more carefully in due course.
I learn the 'Tungsten West' on gmaps is the front door, as it were, while 'Drakelands Corner', a little to the east, is the facility shown in the opening snap. The long white chute is the giveaway.
I thought I had heard of Wheal Florence above before, but it now seems that there is more than one mine with this name - and that this one is probably not the one I had heard of. See reference 4.
PS 2: I have now taken a look at OS naming conventions, as described at reference 8. The business of trying to tie down names in a properly official, organised sort of way. Gmaps is content to be more fuzzy. The term 'white man's burden' comes to mind. There is also the play built around mapping in a turbulent Ireland noticed at reference 10.
And the business of layers. There are more layers in the OS central database than are made visible in their Landranger maps, or in the online consumer product built thereon. But that still leaves the awkward gap between what you can see on those maps and what you can find by search.
References
Reference 1: UK backs Devon tungsten mine in effort to secure critical mineral supplies: National Wealth Fund invests £71mn in project to produce metal used in aerospace and defence industries - Camilla Hodgson, Financial Times - 2026.
Reference 2: https://www.tungstenwest.com/.
Reference 3: https://psmv6.blogspot.com/2026/08/riverford-farm-kitchen.html.
Reference 4: https://www.heritagegateway.org.uk/Gateway/Results_Single.aspx?uid=MDV12647&resourceID=104.
Reference 5: https://en.wikipedia.org/wiki/Whim_(mining). Crops up in the previous reference.
Reference 6: https://en.wikipedia.org/wiki/Kelly%27s_Directory.
Reference 7: https://tungstenprices.com/. 'Tungsten has the highest melting point of any element at 3,422°C, nearly double the density of lead, and hardness rivaling diamond as carbide. Its price has outpaced gold, silver, copper, and oil combined over the past year'.
Reference 8: https://www.ordnancesurvey.co.uk/governance/policies/geographical-names.
Reference 9: https://www.ordnancesurvey.co.uk/documents/resources/os-names-policy.pdf. A properly bureaucratic version of reference 8.
Reference 10: https://psmv4.blogspot.com/2019/12/translations.html.


















































