Dol Guldur.

Amon Lanc. ( Sindarin.)

Naked Hill.

Hill of Sorcery.

Dol Guldur was the highest point in the highland at the south-west corner of Mirkwood and was called Amon Lanc ( Naked Hill ) because no trees grew on its summit. It was not before the Third age and the rising of Sauron revealed as the Necromancer when he made his stronghold there it received the name Dol Guldur ( Hill of Sorcery.)