Fairbanks is the focal point for tiny villages scattered throughout the surrounding wilderness and a staging point for North Slope villages such as Barrow and the oil fields of Prudhoe Bay. Fairbanks is called "The Golden Heart of Alaska," a reference to the character of her people as much as to the location of Fairbanks in Alaska's interior, or to the discovery of gold in 1902. The Interior has temperatures ranging from 65 degrees below zero in the winter to 90 degrees above in the summer. Gardening is big in the Interior. Alaska Gardens abound. Fairbanks also has very long summer days. The shortest winter day of the year has less than three hours of sunlight, the longest never really ends, though officially it has over 21 hours.