Circles of latitude between the 35th parallel north and the 40th parallel north
Following are circles of latitude between the 35th parallel north and the 40th parallel north:
36th parallel north
[edit]The 36th parallel north is a circle of latitude that is 36 degrees north of the Earth's equatorial plane. It crosses Africa, the Mediterranean Sea, Asia, the Pacific Ocean, North America and the Atlantic Ocean. In the ancient Mediterranean world, its role for navigation and geography was similar to that played by the Equator today.[1]
From 7 April 1991 to 31 December 1996, the parallel defined the limit of the northern no-fly zone in Iraq.[2]
At this latitude the sun is visible for 14 hours, 36 minutes during the summer solstice and 9 hours, 43 minutes during the winter solstice.[3]
United States
[edit]In the United States, the 36th parallel north is occasionally used as a rough northern boundary for the Sun Belt, a region spanning most Southern and Southwestern states and comprising most of the nation's warmest climates.
Cities and landmarks close to the parallel include the following: Kettleman City, California; Henderson, Nevada; Hoover Dam; South Rim of the Grand Canyon; Los Alamos National Laboratory; Tulsa, Oklahoma (passing through the southern portion of the city); Nashville, Tennessee (passing through the southern portion of the city); Knoxville, Tennessee; Winston-Salem, North Carolina; High Point, North Carolina; Greensboro, North Carolina; Durham, North Carolina; Chapel Hill, North Carolina; and others. The parallel helped define the North Carolina–Tennessee–Virginia Corners.
The sixth standard parallel south of Mount Diablo Range at 35°48′ north, 13.8344 miles south of the 36th parallel, forms a continuous boundary between the California counties of Monterey, Kings, Tulare, and Inyo on the north and the counties of San Luis Obispo, Kern, and San Bernardino on the south.[4] It is sometimes taken as the boundary between Central California and Southern California.[5]
The parallel 36° north approximately forms the southernmost boundary of the Missouri Bootheel with the State of Arkansas.
The 36th parallel passes through Duke University in several places. Its Campus Drive that connects the campuses crosses the parallel several times.[citation needed] The Duke Gardens has a "36th Parallel Club" although the garden itself is just north of the parallel.[citation needed]
Around the world
[edit]Starting at the Prime Meridian and heading eastwards, the parallel 36° north passes through:
37th parallel north
[edit]The 37th parallel north is a circle of latitude that is 37 degrees north of the Earth's equatorial plane. It crosses Europe, the Mediterranean Sea, Africa, Asia, the Pacific Ocean, North America, and the Atlantic Ocean.
At this latitude, the Sun is visible for 14 hours, 42 minutes during the summer solstice and 9 hours, 37 minutes during the winter solstice.[6]
The 37th parallel north is roughly the northern limit of the visibility of Canopus, the second-brightest star of the night sky. Along with the 37th parallel south, it is the latitude at which solar irradiance is closest to the planetary average,[7] with higher solar irradiance equatorward and lower poleward.
United States
[edit]

In the United States, the parallel defines the southern borders of Utah, Colorado, and Kansas, and the northern borders of Arizona, New Mexico, and Oklahoma. It dates to the Kansas–Nebraska Act of 1854 when Congress divided Unorganized Territory into Kansas and Nebraska north of the 37th parallel and a remainder Indian Territory to the south. Before that, the line had been thought to be the boundary between the Cherokee and Osage reservations – the 2.46 miles (3.96 km) discrepancy resulting in the creation of the Cherokee Strip. Congress extended the line west to New Mexico Territory, thus defining which states and territories would constitute The South between the Colorado and Mississippi Rivers, and creating what later became the Oklahoma Panhandle.[8]
The parallel 37° north formed the southern boundary of the historic and extralegal Territory of Jefferson.
U.S. Landmarks located on or in close proximity of the 37th parallel
[edit]- Santa Cruz, California – Located on the exact entry point into the U.S. at Bonny Doon Beach.
- Yosemite National Park — Situated in close proximity, just north of the 37th parallel.
- Death Valley – The 37th parallel runs approximately 1,300 ft south of the Little Hebe Crater rim and approximately 1,900 ft south of the larger