14 ms·

There are some open pit mines that are likely to last quite a while. The largest is 4 km wide by 1.2 km deep and even if filled in by drifting sands, it would b

There are some open pit mines that are likely to last quite a while. The largest is 4 km wide by 1.2 km deep and even if filled in by drifting sands, it would be unmistakably artificial. https://blog.iseekplant.com.au/blog/5-largest-open-pit-mines https://blog.iseekplant.com.au/blog/5-largest-open-pit-mines Dams are also likely to be detected. The dams themselves may have disappeared, but the artificial sediment beds in the valleys upstream will likely persist for a very long time.

foepys 6y ago
That list doesn't include Tagebau Garzweiler, a 66km² (Garzweiler I) plus 48km² (Garzweiler II) large coal mining area in Germany. It's home to Bagger 288 [1] and Bagger 293 [2], some of the largest vehicles on earth. The English Wikipedia article is surprisingly short but the German one is pretty long [3]. Starting 2030 Garzweiler will be filled with water until the year 2100 and create a 74km² large lake. 1: https://en.wikipedia.org/wiki/Bagger_288 https://en.wikipedia.org/wiki/Bagger_288 2: https://en.wikipedia.org/wiki/Bagger_293 https://en.wikipedia.org/wiki/Bagger_293 3: https://de.wikipedia.org/wiki/Tagebau_Garzweiler https://de.wikipedia.org/wiki/Tagebau_Garzweiler (use DeepL if you don't speak German)