The Lochmaben Stone is a megalith standing in a field, nearly a mile west of the Sark mouth on the Solway Firth, three hundred yards or so above high water mark on the farm of Old Graitney in Dumfries & Galloway in Scotland. The area is also known as Stormont. Together with a smaller stone it is all that is left of a stone circle dating back to around 3000BC.
The principal stone or megalith, referred to as the Lochmabonstone by Logan Mack in 1926, has, in the Borders context, an unsurpassed extent of history attached to it. It is an erratic, 7 feet high and 18 feet in girth and weighs approximately ten tons. It is composed of weathered granite, exposed to severe glacial action.
Wikipedia https://en.wikipedia.org/wiki/Lochmaben_Stone
Address DG16 5, United Kingdom
Coordinates 54°58'58.067" N -3°4'34.98" E