The 68th Parallel North is a circle of latitude located 68 degrees north of the Earth's equatorial plane. It runs through several countries, including parts of Norway, Sweden, and Russia. This parallel is significant in geography as it marks a boundary in the Arctic region, where the climate is predominantly cold and harsh. In the Arctic, the 68th Parallel North crosses various landscapes, including tundra and ice-covered areas. It is also near the northern limits of human habitation, with few settlements existing at this latitude. The region experiences extreme seasonal variations in daylight, with long summer days and extended winter nights.