From A Wiki of Ice and Fire
The ice-river clans are clans of free folk who live near the great ice rivers beyond the Wall, north of the Frozen Shore and south of the Lands of Always Winter. They are said to feast on human flesh.
Before Mance Rayder negotiated a peace, the ice-river clans warred with the men of the Frozen Shore.
A Storm of Swords
Clan members are among Mance Rayder's army as it attacks the Wall.
- ↑ 1.0 1.1 1.2 A Storm of Swords, Chapter 15, Jon II.