A souterrain is a grotto or cavern underground.
4 - miles N of Aboyne. On A 974 about 2 miles NE of Tarland. The site is signposted. The souterrain lies between the farm buildings and the main road. A torch is required to see the interior of the site.
Note the stillness of the air and the evenness of the temperature inside, which suggests that the souterrain would have made an ideal storehouse.
In some instances traces of surface habitations of either timber or stone of broadly Iron Age date have been located near to the souterrains, but no such indications survive at Culsh.