Although nothing is now visible on the ground, a large fort here has been identified using aerial photos to look at cropmarks.
Measuring some 210m east to west by 75m north to south, the fort is surrounded by up to seven ditches, some of which have been palisaded. The inner two ditches enclose an area that is almost rectangular in shape, measuring approximately 70m east to west by 28m north to south, while the outer ditches form an oval shape.
The fort was defended to the north by its location on the top of the Hanging Craig, a 45m tall cliff, and at the eastern end is an 8m wide entrance cutting through the ditches. The fort of Hanging Craig occupies a position on a ridge running east-west towards the Garleton Hills.
Just to the south-east of this fort is the smaller fort of Seaton Law, and it may be that these two forts were sited to offer an extra line of defence to the larger fort of Kae Heughs along the ridge to the west.