[Trapper John]

I have to say that this is probably the wrong place for this posting, so if the Forum Police want to move it, feel free.
Earlier this year, I had to go on business to a Medical Equipment Company outside Lydney in Gloucestershire on the north bank of the Severn. Before I went, I had a look at Lydney using the 'satelite' function of Google maps. I found the preserved railway line, but I also found what looked like a large bus park close to Lydney railway station.
When I got there, I had an opportunity to get a very brief look at this park. It was fenced off, but seemed to contain about 60 old buses. The only thing I recognised was an old Alexander J-type body (circa 1972, or older) on a Fleetline or Atlantean, painted a vivid yellow.
Does anyone have any idea what this site is?

Trapper John