The Elvish refuge where the Fellowship forms in The Lord of the Rings: The Fellowship of the Ring is Rivendell.
Frodo reaches Rivendell after being wounded by a Nazgûl near Weathertop. The settlement, also called Imladris, is ruled by Elrond and serves as a place of healing, counsel, and refuge. At the Council of Elrond, representatives debate what should happen to the One Ring, and the decision is made to send it toward Mordor for destruction.
Rivendell is distinct from Lothlórien, another Elvish realm visited later in the first film. Mirkwood is the woodland kingdom associated with The Hobbit, while Erebor is the Lonely Mountain. The Fellowship’s members depart Rivendell together, making the refuge one of the most important transition points in the trilogy’s story.