Missed the edit window, apologies for the additional peer addendum.
There are hundreds of thousands of examples of abandoned mines in dire need of reclaimation, btw ... in one state of one single country:
Extensive mining has occurred in Western Australia since the mid-1800s resulting in tens of thousands of abandoned mine features across the Western Australia.
There's a program to very slowly deal with as many as possible using money taxed from current and future minesites .. but this is underfunded and overwhelmed.
It's a similar story in South Africa, other African states, China, Mongolia, Russia, former USSR satellites, Canada, USofA, etc.
Dunno whether S&P (peer link) still do abandoned mine GIS data .. we did before we sold that to them.
There are hundreds of thousands of examples of abandoned mines in dire need of reclaimation, btw ... in one state of one single country:
https://www.dmp.wa.gov.au/Geological-Survey/Abandoned-Mines-...There's a program to very slowly deal with as many as possible using money taxed from current and future minesites .. but this is underfunded and overwhelmed.
It's a similar story in South Africa, other African states, China, Mongolia, Russia, former USSR satellites, Canada, USofA, etc.
Dunno whether S&P (peer link) still do abandoned mine GIS data .. we did before we sold that to them.