The Weeping Water is a river between the Last River, the Lonely Hills, and the Sheepshead Hills in the north. The Dreadfort, the seat of House Bolton, lies along the river, which flows southeast into the Shivering Sea.
While foxhunting along the Weeping Water, Lord Roose Bolton raped and impregnated a miller's wife; the child of the rape was Ramsay Snow. After returning from the Redfort, Domeric Bolton rode up the river to befriend Ramsay. Domeric eventually died of poison.
A Dance with Dragons
Theon Greyjoy remembers escaping from the Dreadfort with Kyra, stumbling over stones in the icy river, and kissing her after they reached the other side. The escape turned out to be a hunting game devised by Ramsay Bolton, however.