Columbia River basin site shows early evidence of first Americans

Stone tools and artifacts unearthed from an archeological dig in Idaho suggest that people lived in the area 16,000 years ago, more than a thousand years earlier than previously thought.

Columbia River - Wikipedia

What Makes The Columbia River Basin Unique and How We Benefit – FWEE – Foundation for Water & Energy Education

Great Basin Indian, Homes, Religion, Food, Clothing, Tools, & Facts

Columbia Basin Main Control Plan

Overlanders in the Columbia River Gorge, 1840-1870: A Narrative History (U.S. National Park Service)

Broken Treaties: An Oral History Tracing Oregon's Native Population - OPB

Columbia Basin Historical Ecology Project Data

Scientists say they've confirmed evidence that humans arrived in the Americas far earlier than previously thought

Lewis and Clark: Expedition, Purpose & Facts