The Icebay of Forochel was an immense body of water whose southern reach lay between the northern tips of the Blue Mountains and Misty Mountains and extended for hundreds of miles to the northeast. The mouth of the bay was in the southwest, between the Blue Mountains and the Cape of Forochel, which separated most of the bay from Belegaer.
A long time ago before a people known as the Forodwaith, who were used to endure the bitter cold of the realm of Morgoth settled in the far north. In the Third Age a remnant of these people was known as the Lossoth or the Snowmen of Forochel. The Lossoth lived on the Cape of Forochel most of the time, but they also camped on the southern shore of the bay at the feet of the Blue Mountains.
In T.A. 1974 the kingdom of Arthedain was overrun by the forces of Angmar. King Arvedui fled to the north, first to the Far Downs, then near the northern end of the Blue Mountains and finally, driven by hunger, to a camp of the Lossoth at the shore of the bay. Partly from fear and partly from pity these people fed and sheltered the king and his men. Then, in March of 1975, a ship from Círdan reached the Icebay to take Arvedui and his party onboard. After they set sail a storm arose which crushed the ship in the ice and the king, his men, and all the mariners perished in the sea.