Have a read of this Topic on the UK GC forums regarding the Archiving of a cache which was in a Mortared Top Wall. Reading the comments from team_loumon who are Professional Wallers on how vulnerable Mortared Top walls are. Made me realise that the guidelines need changing to add Mortared Top Walls to Dry Stone Walls where caches may not be placed.

May be a member of the committee who is not involved in the discussion on GC, this is not an attack at Moote who started the topic. But to avoid claims of bias against him, contacts an independent Dry stone and Mortared stone Waller and obtains some clear advice on the issue of Mortared Walls, before deciding if the Guidelines need changing to include Mortared Top Walls.

Dave