Eildon Hall is an early 19th century mansion which may have replaced an earlier tower.
The tower of Hildoun or Heeldoun is shown on Blaeu’s mid-17th century map.
I have placed the site of the tower at Eildon Hall pending further research.
Eildon Hall; Heeldoun; Hildoun
Eildon is in the parish of Melrose and the county of Roxburghshire.
Grid reference: NT 56178 32419
Lat / long: 55.583434, -2.696724
Enter a starting point