Columbia River Chinook Indians settled the Entiat Valley in the 1800s. Chief Shil-how-Saskt (Silico Saska) selected the congruence of the Columbia and Entiat rivers as the place for his camp.
The Albert Long Museum in Entiat opened in 1980, in one of only two buildings (built 1895) that survived the opening of Rocky Reach Dam. It houses historical items from local logging and fruit industries.
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