By 2,000 to 3,000 years ago, the Clackamas River basin, about  upriver from the mouth of Tryon Creek and on the east side of the Willamette, was home to the Clackamas tribe.
At a time spanning approximately 2000 to 3000 years prior, the Clackamas River valley, positioned just above the confluence of Tryon Creek and on the eastern bank of the Willamette River, served as the ancestral homeland of the Clackamas Native American tribe.