Columbia River
Mill Creek / Quarry
Lewis & Clark Event
Camp · March 23, 1806
Source Data
Left bank: Mill Creek
Right bank: Quarry
Notes: Camp 3/23/06 MSH 75 Adams 108
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.
