Columbia River

Bradbury Slough / Abernathy Point

Mile 54.0 Both Bank Geologic

Source Data

Left bank: Bradbury Slough

Right bank: Abernathy Point

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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