Water from Manning Lake enters Crystal Lake via Nelson Brook. Other waterways flowing into Crystal Lake include Wasson Brook and Mill Brook. Water flows out of a dam from the southern end of Crystal Lake via the Suncook Lakes and Suncook River to the Merrimack River.
Water from Manning Lake enters Crystal Lake through Nelson Brook. Other waterways flowing into Crystal Lake consist of Wasson Brook and Mill Brook. Water exits Crystal Lake via a dam at its southern end, passing through the Suncook Lakes and Suncook River to reach the Merrimack River.