The Bonneville Fish Hatchery is located at exit 40 off of Interstate 84. Annual Geology Day - Come marvel in the unique geology of the Columbia River Gorge at Bonneville Lock and Dam's Annual Geology Day. This event will explore the booming effects of volcanoes, floods and earthquakes and how these natural disasters created the Columbia River Gorge millions of years ago. Activities are scheduled for the Bradford Island Visitor Center. Rangers at the Bradford Island Visitor Center will present special Lewis and Clark film presentations in the main theater throughout the weekend.
Admission is free.
1998 Visitor facilities move to summer hours . Past Events held at Bonneville Dam Volksmarchers at Powerhouse II . Don't despair if there are no activities listed above. We hold many events throughout the year. The following lists displays some fo the events we have held in the past several years.