This is quite an interesting thread. A brief (very) history lesson. At some stage in the past all the surface and the land underneath it would appear was owned by the same person. Then as the surface land was sold off (severed) from the mineral rights, much of the surface was now owned by different owners, however the mineral rights were still owned by the original owner. Hopefully I have not lost anyone. This is the situation that exists in many parts of Devon and Cornwall.
When the severence took place, the owner of the surface and the minerals rights ensured that if they required access to work their minerals they kept it. Thus the owner of the minerals (legal) has still has rights to access it. To ensure that they (Mineral Right owner) can still get access for what ever reason various clauses etc have been placed in the deeds of all the surface land that was sold.
For most people, this has no effect on them whatsoever. However the luck folk who happen to live in areas where much or current mining has/is taking place, the story is a little different. My friend owns a property in Barncoose upon land which the Basset family used to own. The successors to the Bassets own the mineral rights underneath.
From what has been said by others, the agents etc of the mineral right owner do have the legal right to enter the land etc etc.
In a modern work, the legal rights for all parties exist. As I can't remember an occassion where the mineral right owner has exersised the right to park a drill rig or scooptram in someones garden I don't think that these rights have either been challenged (legally) or exercised. I do think that a modern mining company would have an interesting time trying to exercise their right without good cause.
The builder of a few homes on the edge of Camborne, sits upon land that was once part of Dolcoath Mine. Before the builder constructed the homes, he was told that the mineral owner had the right to mine underneath the area of land and that there was also the right to mine from the surface too. The homes were built. Now it should be the job of every solicitor to inform the potential owners of homes everywhere that there are mining related clauses relating to the home in question. Some might say that its buyer beware, and you should have access to this information before you buy. Happy reading.
From the information that has already been posted - has anyone checked to see what relates to their property and were they made aware beforehand. This is not the mineral owners responsibility.
As a direct result of minerals rights not being recorded, it can be difficult to find out who the owner is. One does not see they waving flags as its not in their interest to do so.
For reopening mines, well the rights are still there all depends upon price, reserves etc etc before this would happen. So unlikely in many places.
If it can't be grown it has to be mined.