The Chequy Water is a stream that runs between the lands of House Osgrey and House Webber in the Reach. It has been known as the Chequy Water for over a thousand years. It rises in the Horseshoe Hills and ends in Leafy Lake.
Lady Rohanne Webber had the stream dammed to irrigate her crops and provide water for her moat. This caused a confrontation with Ser Eustace Osgrey and was only settled after a battle to the death between Ser Lucas Longinch and Ser Duncan the Tall.