The Lewis & Clark Salt Works trail in Seaside, Oregon is a compact 0.02-kilometer historic site at just 6 meters elevation, featuring authentic replica salt-making cairns used by the Corps of Discovery during winter 1805-1806. This nationally significant landmark offers visitors a fascinating glimpse into the Lewis and Clark expedition's daily survival activities, with interpretive displays explaining how five men boiled seawater to produce salt for preserving meat during their Pacific Coast stay.