I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
Parking was at Gravel Hill Car Park just off the A4 here: 51.428649, -1.771811. The walk to the Valley of Stones is by no means easy. I used a walking route from All Trails, but I crossed a farmers field and a race course at one point. By the time I got back to the car, I had walked 6.6 miles (10km). TOAL was from the Valley of Stones.
The valley is covered with hundreds (maybe thousands) of Sarsen stones. It is from here that the Sarsen stones used to build Stonehenge (17 miles south) and Avebury (2 miles west). I must have been walking for an hour through the valley before reaching the end. The stones were dumped here at the end of the last Ice Age 12,000 years ago.
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 24/04/2022. It remains the responsibility of any pilot to check for any changes before flying at the same location.