The 68th parallel north is a circle of latitude that is 68 degrees north of the Earth's equatorial plane, in the Arctic. It crosses the Atlantic Ocean, Europe, Asia and North America.
At this latitude the sun is visible for 24 hours, 0 minutes during the summer solstice and Civil Twilight during the winter solstice.
This latitude is the boundary between the Southern and Arctic zones of Canada's National Topographic System, at which the longitude span of each map sheet doubles as one crosses this latitude going north.