Disgrifiad
Heritage Recording Services Wales report no 186, "Gelli Gron, Manafon, Welshpool, Powys. Standing Building Investigation and Recording and Watching Brief" produced by Richard Scott Jones, March 2017. Low resolution pdf version.
Cofnod Casglu
HRS - Heritage Recording Services Wales Project Archives
Cyfrwng
Cartographic, Graphic, Photo, Text.
Cychwynnwr
Richard Scott Jones, Heritage Recording Services Wales
