From A Wiki of Ice and Fire
Stonedoor is a castle along the Wall, abandoned by the Night's Watch. To the west lies Greyguard and to the east Hoarfrost Hill.
A Clash of Kings
Lord Commander Jeor Mormont plans to re-garrison Greyguard, but Qhorin Halfhand advises Stonedoor instead, due to Greyguard's poor condition.
A Storm of Swords
Jon Snow is with a group of wildlings who attempt to climb the Wall between Stonedoor and Greyguard.
A Dance for Dragons
Lord Commander Jon Snow gives Stonedoor to Soren Shieldbreaker to garrison and settle his own people. Borroq is scheduled to join them.
References and Notes