Circle of latitude
The 81st parallel north is a circle of latitude that is 81 degrees north of the Earth's equatorial plane, in the Arctic. It crosses the Atlantic Ocean, the Arctic Ocean, Europe, Asia and North America.
At this latitude the sun is always visible during the summer solstice and astronomical twilight during the winter solstice.
Around the world
Starting at the Prime Meridian and heading eastwards, the parallel 81° north passes through:
See also
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