Fjords are deep, narrow and long inlets of the ocean. During the last Ice Age, receding glaciers slowly cut river valleys. As the glaciers melted, water filled the valleys and created in some areas a dramatic landscape of high, rough mountain walls contrasted with deep waters below. Countries noted for their fjords (also spelled fiords) include Norway, Alaska, Greenland, Scotland, Chile and New Zealand. Norway's Geiranger Fjord extends 10 miles (16 kilometers) inland and 223 feet (360 meters) deep.
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