Built-in 1901 Swan Falls Dam is the oldest of the hydroelectric dams on the Snake River. The dam is 107 feet tall by 1150 feet long, creating a reservoir that is capable of holding up to 7425 acre-feet of water, covering 1525 acres.
The original hydroelectric plant was replaced in the 1990s. The original plant has been turned into a museum that is open to the public Saturday’s 10:00 am to 4:00 pm April 15th through Labor Day.
Swan Falls day-use area includes camping spots, boat ramps, and fishing docks. Anglers can find many species of fish in the area including White Sturgeon, Rainbow Trout, Channel, and Bullhead Catfish, Black Crappie, Small and Large Mouth Bass, and Yellow Perch.
The Swan Falls Dam day-use area includes:
- A picnic area with tables and a covered shelter
- Garbage service
- Accessible restroom facilities
- A portage trail around the dam for boaters
- Fishing docks
- Interpretive signs
- Geocaching opportunities
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