This is the grave of Graham of Whitemoss who was buried with his horse. This grave is over 200 years old and the story I remember from when I was younger was that they had been struck by lightening one night while traveling in a storm. I remember before these house were here and this grave sat in the middle of an area of grass. This area was originally the village of Maxwellton or Hogsmuir which was originally a weaving village dating from 1780.
To find the cache, please answer the following questions -
How many stones are standing up? This is A
How many stones are lying down? This is B
The cache can be found at N55 46.A(bx3)0 W004 09.(BX3)7B
If you want to read more information on this please see - East kilbride This history of Parish and Village by Thomas Eric Niven