The Alton Bay Seaplane Base and Ice Runway in Alton, New Hampshire, is the only Federal Aviation Administration-approved registered ice runway in the contiguous United States, and it has never ...

The Alton Bay Ice Runway on Lake Winnipesaukee will open on Friday. The seaplane base said the ice thickness ranges from 12.25 inches to 13 inches, meeting the minimum requirement of 12 inches for ...

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