Spooky Stones

Today I wandered lonely as a clown..err..cloud. The weather turned good and I went to Burrator again, just missing the 10k run, and went a wandering around Down Tor. There's a fabulous stone row and circle just north east-ish(?) of the Tor. The larger stone weighs 5 tons apparently. How they know this I don't know but I read in book that in 1884 it took 24 workers to get it vertical again after it had been knocked down in 1880. I guess they weighed it then!