Wasco-Wishram are two closely related Chinook Indian tribes from the Columbia River in Oregon. Today the tribes are part of the Warm Springs Reservation in Oregon and Confederated Tribes and Bands of the Yakama Nation in Washington.
The Wishram and Wasco are Plateau tribes that are closely related and share many cultural aspects of the Northwest Coast tribes. They lived along the banks of the Columbia River, near The Dalles. The Dalles were a prime trading location, and the tribes benefited from a vast trade network. Unfortunately, the 1800s brought non-Indians and European diseases, which took a great toll on the Wasco and Wishram populations. Both tribes were forced by the United States in 1855 to sign treaties ceding the majority of their lands. These treaties established the Warm Springs Reservation.
Wasco comes from the word Wacq!ó, meaning "cup" or "small bowl," the name of a distinctive bowl-shaped rock near the tribe's primary historic village. They traditionally lived on the south bank of the Columbia River. In 1822, their population was estimated to be 900. They were divided into three subtribes: the Dalles Wasco or Wasco proper (a.k.a. the Ki-gal-twal-la on the south side of the Columbia River near The Dalles in Wasco County), the Hood River Wasco (on the Hood River or Dog River to its mouth into the Columbia River; Lewis and Clark grouped them with the White Salmon River Band and named them Smock-Shop Band of Chil-luck-kit-te-quaw, but they were two separate groups: White Salmon River Band in Washington and Hood River Band in Oregon, called Ninuhltidih (Curtis) or Kwikwulit (Mooney) and the Cascades Indians or Watlala (downstream from the other Wasco groups, two groups, one on each side of the Columbia River; the Oregon group were called Gahlawaihih [Curtis]). The Watlala, whose dialect is the most divergent dialect of the Wasco, may have been a separate tribe though identified as Wasco since 1830.
The Wishram are known as the Tlakluit and Echeloot. They traditionally settled in permanent villages along the north banks of the Columbia River. In the 1700s, the estimated Wishram population was 1,500. In 1962 only 10 Wishrams were counted on the Washington census.