Columbia River

Portuguese Pt/Cape Swell

Mile 18.5 Right Bank Geologic

Lewis & Clark Event

Camp · November 8–November 9, 1805

Source Data

Right bank: Portuguese Pt/Cape Swell

Notes: camp 11/8-9, 1805 MSH Mt Adams

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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