Columbia River
Willamette River
Lewis & Clark Event
Trail Reference · April 2, 1806
Source Data
Left bank: Willamette River
Notes: Clark saw 5 mtns 4/2/1806
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.