The five Tribal members of the Portland Harbor Natural Resource Trustee Council (Five Tribes) have developed fact sheets to help interested members of the public more fully understand and appreciate each of the Five Tribe’s relationships with natural resources in and around the Portland Harbor Superfund Site and how these relationships have changed as a result of contamination in the lower Willamette River. Traditionally, tribal peoples spent substantial amounts of time in and around Portland Harbor and the lower Willamette River, forming unique bonds with the river’s natural resources. The Willamette River continues to provide sustenance to tribal peoples and support cultural, traditional, and religious activities, though in a lesser fashion due to contamination of natural resources important to the Five Tribes. We hope you find these fact sheets informative.