User blog comment:Ronshol The Black/A WALL!! A MAJOR STRUCTURE!?!?!?!?!?/@comment-25012056-20151226140633/@comment-25012056-20151227154730

Where would they get the Mordor rock? Numenoreans are too cheap to ship Mordor Rock or even Gondor Rock over the Isen. They used what they had.

Gen. Grievous1138 (admin) comlink 15:47, December 27, 2015 (UTC)