The Columbia-Wenatchi people, also known as the P'squosa, are a Native American people who originally lived in the region near the confluence of the Columbia and Wenatchee Rivers in eastern Washington.

Now they reside on the Colville Indian Reservation and a small number living on the Yakama Nation Reservation.

Their language, known as Columbia-Moses, is an interior Salish language. Only a few elders still speak their native tongue.

Historically, they were a semi-nomadic people who follow seasons. They ate salmon, camas root, berries, and deer. Roots were gathered then ceremonially distributed and eaten by all in reverence to the Creator. A similar ceremony inaugurated the salmon fishing season and was known as Quiyachetum. Even though they were semi-nomadic, land provided identity for them. Today they are seeking to reclaim their original homeland near Leavenworth, Washington.

They believed that during adolescence one could acquire a supernatural power for guidance and protection throughout life. As a result, adolescents went through a ritual passage or a spirit quest that lasted several days or more at a remote location.

They believed in a Creator that had fashioned everything to have usefulness. They also firmly believed that in ancient times before the appearance of man, the Coyote and other animal people actually existed. This is evidenced in such formations as the Owl Rocks and Saddle Rocks near present Wenatchee and, as the elders point out, the Coyote’s race track.

The Colville Indian Reservation lacks adequate, affordable housing, home water systems and even electricity. It also lacks safe, usable roadways as well as facilities such as modern health clinics and youth shelters. Individuals and families sometimes suffer from the effects of extensive drug and alcohol abuse, domestic violence and crime.