River Medway points along the North Downs, the Weald and Ashdown Forest. The major tributaries are: Minor tributaries include: Former minor tributaries include the Old Bourne River, which flowed through the Brook, Chatham (not to be confused with the main tributary River Bourne). The river and its tributaries flow through largely rural areas, Tonbridge, Maidstone and Medway being the exceptions. The Medway itself initially flows in a west-east direction south of the North Downs; at the confluence of the River Beult, however, it turns north and breaks through the North Downs at the Medway Gap, a steep and narrow valley near Rochester,
Black River (Chehalis River) Black River (Chehalis River) The Black River is a river in Thurston County in the U.S. state of Washington. It is approximately long with a drainage basin of about . The Black River's source is Black Lake, located about west of Tumwater. The river flows generally south, through the Mima Mounds State Natural Area, then southwest, passing by Rochester and entering Grays Harbor County, then emptying into the Chehalis River in the Chehalis Indian Reservation. The fur trader John Work was the first to describe the Black River in 1824: "The Black River so named from the colour of its