Columbia River

Grain Elev.-Mid Col. Prod.

Mile 207.8 Left Bank

Source Data

Left bank: Grain Elev.-Mid Col. Prod.

Notes: Oregon Trail First Look

Memorial Contribution Documented by Robert Heacock (1957–2025), from Wind Hard from the West: The Lewis and Clark Expedition on the Snake and Columbia Rivers (2015), used by permission of his family.

Our Partners

Follow the research

New findings, additions, and corrections from the archive. One email a month, no noise.