Print Scheduled Monument: Langwell Castle or Achastle, 230m E of Langwell House (SM3437) Where Highland Council is not the Designating Authority, click on the external links to see the full designation record. Designating Authority Historic Scotland Date assigned 15 August 1974 Date last amended External Links (1) http://portal.historicenvironment.scot/designation/SM3437 Loading documents & images Map Find a placename, postcode or grid reference Map layers Base layers Base layer opacity Info Record list Tools The map is limited to 3000 records per layer so not all records are being displayed for this area. Zoom in to see more. Print map Map title Show corner coordinates Location Grid reference Centred ND 116 227 (82m by 85m) Map sheet ND12SW Related Monuments/Buildings (1) Achastle, Langwell Castle (Monument) (MHG1101)