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![Hubbard Glacier is the largest tidewater glacier on the North American continent line3943.jpg Hubbard Glacier is the largest tidewater glacier on the North American continent](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_line3943.jpg?itok=gragXwWd)
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Hubbard Glacier is the largest tidewater glacier on the North American continent. In contrast to most glaciers it has been advancing since first mapped in 1895. If it's advance continues, it will close off Russell Fjord and make thelargest glacier-dammed lake in North America in historic times. (Image credit: Mandy Lindeberg)