Fellow Geograph Member Chris Hodrien has added the following: -

This mill and canal (from the opposite angle, looking South-West from the railway footbridge at SE 003073) is a very popular and photogenic background, frequently featuring in steam railway magazines photographing main-line steam train specials attacking the famous stiff climb up past Diggle to Standedge tunnel, the bridge frequently housing up to 30 'gricer' photographers! Incidentally the thin white diagonal bridge shown on the OS map section crossing the canal just North of the mill does not exist, with no indication that it ever has. On the North side of the yellow lane, just east of the railway overbridge, opposite the little residential side road at SE003075, just down the grassy slope by the start of the footpath, can be found a rare in-situ LNWR cast iron boundary marker. The wide section of canal in the foreground will have been a boat 'winding (turning) hole', just below the nicely-restored lock. The stone tower on the Mill supports a cast iron water tank which was used for fire-fighting (sprinkler mains) and process water.