Salween River much of its length, the Salween's course is nearly parallel to that of the much larger Mekong in the east. Although the commonly accepted name is Salween, the river is known by a handful of other names regionally: "Nu" in China, "Thanlwin" in southern Burma, and "Salawin" on the border of Thailand and Burma. Several major sub-continental drainage basins border on the Salween. The Mekong basin forms nearly the entire eastern boundary of the watershed, while the Irrawaddy River flows southwards on the west side of the basin. The smallest boundary is formed by the Yangtze to the extreme north.
Course of the Willamette River of Dunthorpe, which is on the left, and flows around Elk Rock Island. Between Dunthorpe and the Sellwood neighborhood of Portland, the river forms the boundary between Multnomah County, on the left, and Clackamas County, on the right. Reaching the city of Milwaukie, the Willamette receives Kellogg Creek from the right and then Johnson Creek from the right slightly above RM 18 (RK 29). Below Milwaukie, the river passes between Sellwood, on the right, and the River View Cemetery, both in Portland, and flows under the Sellwood Bridge, which carries Southeast Tacoma Street. Below the bridge, Sellwood Riverfront Park, Oaks