Fortuna was founded in 1913 along a Soo Line Railroadbranch line running between Flaxton, North Dakota and Whitetail, Montana. The name comes from the Romangoddess of fortune and was chosen by railroad officials to note the settlers’ expectations of prosperity with the arrival of the railroad.
Fortuna has the latest sunset time several days after the summer solstice in the contiguous 48 states. The sun set at 10:03:10 PM Central Daylight Time (CDT) on June 24, 2016. This is due to Fortuna’s location at the far western edge of the Central Time Zone. Although other communities in the contiguous 48 states are located farther north, none of them are located as far west in their respective time zones. Fortuna’s westerly location in the time zone gives it the latest local time when the sun sets near the summer solstice.
Fortuna is located at 48°54′40″N103°46′27″W.
According to the United States Census Bureau, the city has a total area of 1.01 square miles (2.62 km2), of which 1.00 square mile (2.59 km2) is land and 0.01 square miles (0.03 km2) is water.