A similar entry appears in the Wheel of Time Companion confirming the information available in the main story arc.
The Waterwood is an area east of the Two Rivers. The Winespring Water flows through it from Emond's Field. Although the land there is fertile, few people farm it (TEotW, Ch. 1). Children From the Two Rivers frequently swim there (TEotW, Ravens Prologue). During Perrin's defence of the Two Rivers, there were many Trolloc sightings in the area (TSR, Ch. 50; Ch. 56).