Word of the Day: Ithilien, a region of Gondor. It is sheltered, shielded (from the east), and contains lots of small woods and trees.
In the beginning of the Third Age, they were being defended by the Tower of Tirith Ungol from attacks from servants of Sauron, preventing them from retaining to Mordor. Then, it underwent a long desertion, which occurred when Minas Ithil was renamed Minas Morgul, and many people fled who dwelled there, opting instead for the Andean to escape from Uruk attacks.
During the War of the Ring, Faramir led the Rangers to ambush Haradrim, while Frodo and Sam were led by Gollum there on their way to Tirith Ungol. After Faramir became confident they weren’t a servant of Sauron, he allowed them to continue walking there.