The fjords of the United States are mostly found along the glacial regions of the coasts of Alaska and Washington. These fjords — long narrow inlets in valleys carved by glacial activity — can have two or more basins separated by sills.
Most of the fjords in Washington originate off Puget Sound and the Salish Sea, while fjords in Alaska originate from numerous, more varied locations.
References
List of fjords of the United States Wikipedia(Text) CC BY-SA