What an intriguing place.
The cairn is located within a walled field, 3 of the field walls are constructed from modern style dry walling whilst the other which runs around a hundred metres is built from material robbed from the cairn, there must be 10, 15, 20 tons of it which would have made the cairn quite a sight before it was robbed.
Today the megalith and the few rocks that are holding it in place are an eyesore, the reconstruction was done with concrete it seems, very ugly and unsympathetic.
Great site not far from parking in bolsterstone village, a must see if your anywhere nearby.
I went on a mission to find this in September 2005. Very close to the village of Bolsterstone, Walder's Low can easily be accessed by walking across a couple of fields. The stones on top of the earth mound look as if they we were only placed there relatively recently.