I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission not required.
The Pontsarn Viaduct was built in the 1860’s to carry the Brecon and Merthyr Railway over the river was designed and built by Savin and Ward and their engineer Alexander Sunderland (as was the Cefn viaduct).
It has 7 spans and is an historic listed structure. It is situated in an area of natural beauty, with “the Blue Pool” and waterfall nearby.
Its located in a quiet little valley easily accessible on foot from the road above.
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 12/02/2025. It remains the responsibility of any pilot to check for any changes before flying at the same location.