Burial Stones? Brecon Beacons, 08 April 2010 at 13:59 hours. Curious this - a couple of engraved stones that looked like grave stones, in a very isolated spot, miles from anywhere in the eastern part of the Brecon Beacons. You can see the Sugar Loaf hill in the background. On doing some research, we found he was an MP in the latter part of the 19th Century and died in 1906. The stones are, in fact, boundary markers between two estates - Sir Bailey Bart and Mrs. McNamara! Camera details: EF28-135mm f/3.5-5.6 IS USM, 1/125 sec at f / 9.0