Episode 1 of 2

Travel to the Columbia-Snake Confluence

When: 3-9 July 1811
Where: Junction of the Columbia and Snake Rivers
Part of: David Thompson posts a claim notice at the Columbia-Snake confluence

Thompson traveled through unvisited country to the confluence, establishing relations with villages.

Between 3 July and 9 July 1811, Thompson traveled from Kettle Falls to the junction of the Columbia and Snake Rivers. He visited villages to establish good relations, aided by tobacco. The legacy claim of a notice for the United Kingdom is not supported by the provided passages.

Sources

David Thompson (explorer) Wikipedia, revision of 2026-08-07

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.