The Priory/Lidbrook Farm,Lower Lydbrook (General)
My Ma was a PROBERT and I grew up in Lydbrook.
The 'dramroad' (sic) carried mineral trucks near the viaduct but I don't think they could have been seen passing under it from any angle. Artistic licence?
No fortifications nearby either, so I doubt it ia the Old Priory.
Sorry, I can't find a photo of it.