[Elrian]

Galadriel had the ring of adamant, which the dictionary defines as unyielding, with Galadriel having lived in Valinor at the time of the Two Trees, as well as in Doriath and learnign from Melian, the Ring helped her to create that past age into Lothlorien, and preserve it, and protect it with a girdle much like Melian's. If I remember right one of the Hobbits, Frodo maybe made a remark about the stars in Lothlorien were strange too. I think with the ring and her own ability she was able to create such a timeless beautiful place. Elrond had the ring of Air, which others may have a better idea of what that could do, but as air is in almost everything, I beleive Elrond controlled the elements of Rivendell with it, Like the Fords. Gandalf had the ringof fire that had the power to strengthen hearts (not Balrogs)