OK, Ecton-Hill-Mixed-Mine-User-Album-Image-79425 and Ecton-Hill-Mixed-Mine-User-Album-Image-79424 need to go into the Maskhill mine archive folder (Oxlow mine doesn't look to have a separate entry in the DB, the three Oxlow entries are a different mine/rake).
Ecton-Hill-Mixed-Mine-User-Album-Image-79421 needs to go into the Moorfurlong mine archive album, Ecton-Hill-Mixed-Mine-User-Album-Image-79418 needs to go into the Muse mine archive album. Ecton-Hill-Mixed-Mine-User-Album-Image-79416 is actually the Clayton mine entrance (as Roy's correctly noted) and needs shifting accordingly, though on looking at 79415 it's definitely the main shaft in Deep Ecton before the scaff was put round it, so it can stay where it is.
This just leaves the one I originally queried, 79417. My gut feeling is that this is in Holme Bank, but I guess we need to wait for Trogladike to see the thread?
Follow the horses, Johnny my laddie, follow the horses canny lad-oh!