These are popular walking tours, so reservations are definitely needed. Call the ranger listed below to reserve your date. The tours are not too strenuous, and many elementary school groups take it each year. The tour meets at the parking area closest to the river.
Legend has it .
When Lewis and Clark arrived, there were 20 plankhouses here for the permanent population. During salmon season, tribes met for fishing and trading from all over, and the population may have reached about 10,000. The terrain has been changed radically by the dam, which filled in about 1957, and by the railroad. It was known as The Long Narrows. Little is known about the pictographs at this site.