The Thirty-Seventh Parallel North is a circle of latitude that is 37 degrees north of the Earth's equatorial plane. It runs across several U.S. states, including California, Nevada, Utah, Colorado, Kansas, Missouri, Illinois, Indiana, and Ohio. This parallel is significant in geography and is often referenced in discussions about climate and ecology in these regions. In addition to its geographical importance, the Thirty-Seventh Parallel North has been associated with various cultural and historical phenomena. Some researchers and enthusiasts have noted that it aligns with several notable locations, including Roswell, New Mexico, known for its UFO sightings, and Area 51, a highly classified U.S. Air Force facility.