Columbia River

Tenasillahe Island / Elochoman Slough

Mile 35.5 Both Bank

Source Data

Left bank: Tenasillahe Island

Right bank: Elochoman Slough

Notes: Cathlamet- marina

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.

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