in the general vicinity in June or July 1947, allegedly an extraterrestrial spacecraft and its alien occupants. Since the late 1970s, the incident has been the subject of intense controversy and of a conspiracy theory regarding a classified program named "Project Mogul". Many UFO proponents maintain that an alien craft was found and its occupants were captured, and that the military then engaged in a cover-up. In recent times, the business community has deliberately sought out tourists interested in UFOs, science fiction, and aliens. Roswell hosted the record-breaking skydive by Felix Baumgartner on October 14, 2012. Geography Roswell is located in the High Great Plains of southeastern New Mexico, approximately west of the Pecos River and some east of highlands that rise to the Sierra Blanca range. U.S. Routes 70, 285 and 380 intersect in the city. US 70 leads northeast to Clovis and west to Alamogordo; US 285 leads north to Santa Fe and south to Carlsbad; and US 380 leads east to Brownfield, Texas, and west to Socorro. According to the United States Census Bureau, Roswell has a total area of , of which is land and , or 0.19%, is covered by water. Climate Roswell is located in both the High Plains and the Chihuahuan Desert and has four very distinct seasons, giving it a BSk or BSh semiarid climate according to the Köppen climate classification. Winters are cool, but usually sunny, and snowfall can occur. Spring is mild and usually warm, but can still be cold on occasion. Summers are very hot (as is common with the High Plains of New Mexico and Colorado) and averages around 30 days per year when the temperature rises above , which can be unpleasant. The North American monsoon occurs during the summer, and can bring torrential downpours, severe thunderstorms (with high winds and hail) and sometimes even tornadoes. The rain can provide a cooling relief from the scorching great plains heat. Fall is usually warm and pleasant, but can be cold late in the season. Snow is possible in October and November. The record low in Roswell is on January 11, 1962, and February 8, 1933. The record high is on June 27, 1994. Demographics As of the 2010 census, 48,366 people, in 17,506 households, resided in the city. The population density was 1,619.9 people per square mile (604.3/km). The racial makeup of the city was 58.3% Hispanics or