5000 year old lost map of Stonehenge?
wickerman
A wonderful website with information about Kraps ring, Bellever and Lakehead hill plus a wealth of other fascinating stuff about ancient Dartmoor.
The last paragraph of information on Wikipedia mentions a hollowed out stone in the nearby stone dyke which travellers deposit a stone in whilst passing, I have just uploaded a picture of this stone, and strangely it had a couple of polished pebbles in it when i visited.
A wealth of information on this website link.
A cornucopia of photographs dating back 150 years, lots of photos of Ancient sites on Dartmoor taken before modern day destruction/erosion.