You are spot on Mull, well done
All the way up there in bonny Scotland and yet you identified this place on the A470. The waterfalls are immediately behind the viaduct.
Now Gethin Jones, or to give him his full title Owen Gethin Jones was born to a local stone mason on 1st May 1816, Owen Gethin Jones grew up to be a large building contractor from Tyddyn Gethin, Penmachno who was engaged by the Festiniog to construct the Rhiwbach Tramway between 1861 and 1863 for the quarries to the east of Blaenau Ffestiniog
He built the grand-looking station at Betws-y-coed, but is perhaps best remembered for the construction of Gethin's Viaduct, a major work of engineering on the Conwy Valley railway line between Betws y Coed and Pont y Pant.