The town of Ponferrada in Spain was the center of a mining area. A narrow gauge railway was built to bring coal from the mines to the power stations. Steam engines were used on this line until far into the 1980 ies. The line was closed in the 1990 ies. While one of the power stations was converted into an excellent museum called “fabrica de la luz” (factory of light) and some of the railway material is displayed in a rather sterile railway museum, most of the engines ended up dumped on a siding and are slowly recovered by nature.
How this all looked like in 1980 can be seen here:
https://h-s-coronastories.blogspot.com/2020/10/number-38-spain-1980.html