Piskey Hall is a small fogou which shows many of the classical signs: a main passage orientated towards the south west, an apparent creep passage and what looks like a former side passage. There is no sign of any former associated dwellings; evidence no doubt having been destroyed by generations of farming.
It lies just outside Constantine near Trewardeva House. It is 100m from a road and visible in a little hawthorn grove - of course - as a hump alongside a drystone wall.
The main passage is relatively short but rewarding for there is a most enormous capping stone worthy of a dolmen or passage grave in Brittany.
Sadly, the far end of the passage and creep has long ago decayed although some signs are visible from the exterior.
Have sympathy with the farmers. Compare this picture with the one above. They were taken barely six months apart and show how quickly the Cornish vegetation can reclaim monuments.
As you stand here, you will understand something of the landscape choices our ancestors made. Around you is a wonderful series of valleys which are barely inhabited by man today. Alongside are the remains of granite quarries and yet those masons left the fogou alone. Why?