iceagetrail.umaine.eduiceagetrail.umaine.edu/images/mapside.pdfpoint 25, 000 years ago receding ice...
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iceagetrail.umaine.eduiceagetrail.umaine.edu/images/mapside.pdfpoint 25, 000 years ago receding ice margin Glacier o a Ocean 15,000 years ago by W THE r. MAINE UNIVESRSIVY MAINE PRESS