Pasayten River

The Pasayten River is a tributary of the Similkameen River, in the Canadian province of British Columbia and the U.S. state of Washington.
The Pasayten River is part of the Columbia River drainage basin, being a tributary of the Similkameen River, which flows into the Okanagan River, which flows into the Columbia River.

Source: Wikipedia https://en.wikipedia.org/wiki/Pasayten_River