A Patrulha da Noite ergueu 19 castelos para guardas os 550 quilômetros da [[Muralha]], porém nunca ocuparam mais de 17 ao mesmo tempo. Hoje, apenas poucos recebem manutenção by an ever dwindling force. The castles themselves are closer to garrisons, composed mostly of barracks, stables, storehouses, towers and out-buildings, as they have no walls of their own (other than the [[Wall]] itself). They were purposefully built this way so the Watch could man only the Wall itself and focus on threats from the north. The Night's Watch feared no attack from the south because of their vow not to take part in the wars of the Seven Kingdoms.
PresentlyAtualmente, due to manpower shortagesdevido à escassez de homens, the Watch only mans the a Patrulha ocupa apenas a [[Torre Sombria]], o [[Castelo Negro]] and e [[Atalaialeste do Mar]], although there are plans to re-garrison apesar de haver planos para reocupar o [[Fortenoite]] and many of the other castlese muitos outros castelos. The question of who will be responsible for the remanned castles is a point of tension between the Lord Commander A questão sobre quem vai ser responsável pelos castelos rreocupados é um ponto de tensão entre o Senhor Comandante [[Jon Snow]] and King e o Rei [[Stannis Baratheon|Stannis]]. Patrols between the castles used to be more regular, but Patrulhas entre as the manpower of the Night's Watch diminishedfortalezas costumavam ser mais regulares, so did the number of patrolsmas diminuiram junto com o contingente da Patrulha. Now the Watch uses mules to ride atop the A Patrulha usa mulas para se locomover sobre a [[Muralha]], pois as the paths have not been graveled between the older castles in many yearstrilhas não recebem cascalho entre os castelos antigos há muitos anos. The mules are bred at As mulas são criadas em Atalaialeste and are specially trained for their dutiese são especialmente treinadas para esta tarefa.{{Ref|aSoS|26}}
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