Tyddyn Mount is a small tree-clad earthwork motte, which has no recorded history. At the northern base of the circular flat-topped motte, are traces of a ditch but the site of the bailey has been lost. With its close proximity to Bailey Hill at Mold, the castle may have served as an outpost.
Mount is located south-east of Mold, off the A541. 12 miles west of Chester on the A5104-A549.
The site is on a private farm, with no public access and the view from the road is restricted.