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| The Hiram M. Chittendon (Ballard) Locks also provide a route for salmon to migrate between fresh and salt water. Drawings on the walls help observers to identify which of the types of salmon are making their run. |
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| The Hiram M. Chittendon (Ballard) Locks also provide a route for salmon to migrate between fresh and salt water. Drawings on the walls help observers to identify which of the types of salmon are making their run. |
