On Tue, 26 Nov 2019 at 13:11, Tony OSM <tonyo...@gmail.com> wrote: A earthwork raised element which has an armoured side seems to be a > revetment - I can see no use of this in OSM., but it is in many books about > castles and fortifications. >
When it comes to castles, a revetment is essentially a retaining wall that is part of the fortification and an ordinary fortification wall is often referred to as a curtain wall. An earthen bank (with no wall) that is part of a fortification (such as a motte and bailey) is an embankment. Purists will object to my simplifications, I expect. > In my view earthworks in general could do with analysis to agree terms and > usage, they do occur in many places and are large mappable features. > Cans of worms are never large enough. :) -- Paul
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