Columbia River
Rock Fort
Lewis & Clark Event
Trail Reference · October 25–May 13, 2026
Source Data
Left bank: Rock Fort
Notes: 10/25-27/1805, 4/15-17/06
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.
