Flagstaff ( ) is a city in and the county seat of Coconino County, Arizona, United States. As of the 2020 United States census, the city's population was 76,831.

Flagstaff is the principal city of the Flagstaff metropolitan area, which includes all of Coconino County, and has a population of 145,101. Flagstaff lies near the southwestern edge of the Colorado Plateau and within the San Francisco volcanic field, along the western side of the largest contiguous ponderosa pine forest in the continental United States. The city sits at around and is next to Mount Elden, just south of the San Francisco Peaks, the highest mountain range in the state of Arizona. Humphreys Peak, the highest point in Arizona at , is about north of Flagstaff in Kachina Peaks Wilderness. The geology of the area includes exposed rock from the Mesozoic and Paleozoic eras, with Moenkopi Formation red sandstone having once been quarried in the city; many of the historic downtown buildings were constructed with it. The Rio de Flag river runs through the city, but only flows in response to rain or snowmelt.

Originally settled by the pre-Columbian native Sinagua people, the area of Flagstaff has fertile land from volcanic ash after eruptions in the 11th century. It was first settled as the present-day city in 1876. Local businessmen lobbied for Route 66 to pass through the city, which it did, turning the local industry from lumber to tourism and developing downtown Flagstaff. In 1930, Pluto was discovered from Flagstaff at its Lowell Observatory. The city developed further through to the end of the 1960s, with various observatories also used to choose Moon landing sites for the Apollo missions. Through the 1970s and 1980s, the downtown fell into disrepair, but was revitalized with a major cultural heritage project in the 1990s.

The city remains an important distribution hub for companies such as Nestlé Purina PetCare, and is home to the U.S. Naval Observatory Flagstaff Station, the U.S. Geological Survey, and Northern Arizona University. Flagstaff has a strong tourism sector, due to its proximity to the Grand Canyon, Oak Creek Canyon, the Arizona Snowbowl, Meteor Crater, and Historic Route 66.

Etymology

At the time of Beale's wagon road, the area was known as Antelope Spring, after the spring at the foot of Mars Hill (now called Antelope/Old Town Spring). The name Flagstaff comes from an actual flagstaff made from a stripped pine tree that was erected at the spring, which McMillan was using as his sheep camp, on July 4, 1876.

The common story tells that the flag-raising for which the town was named occurred when a ponderosa pine flagpole made by a scouting party from Boston (known as the "Second Boston Party") was raised to celebrate the United States Centennial. Various other stories have been told of the circumstances. One says that on July 4, 1855, a surveyor for the railroad by the name of Samuel Clark Hudson, accompanied by his team, climbed a tall pine tree and tied a flag, with another saying it was Beale's men who raised the flag in 1859. The town was still known as Antelope Spring in 1871.

After the town took the name Flagstaff, it began to be known as 'Old Town' for a period, and was known by different names when the Atlantic and Pacific Railroad was being built through the area in 1882. It may have been known as 'Flagstaff Spring' for a while, and 'Old Town Spring' after this before simply 'Old Town', a name given after a fire destroyed much of the town, with a new community then raised a few hundred yards away called 'New Town'. Another version of the Old and New Town names says that the railroad depot was moved by half a mile to prevent hill starts, and business owners soon followed it, displacing the commerce of the town to Front Street of 'New Town' while the houses were still in 'Old Town' with the spring; when the fire burned down 'Old Town', 'New Town' remained. The name Flagstaff was reinstated in 1884 when a post office was introduced alongside the railroad depot.

The city has different names in local Native languages. In Navajo, it is known as . This name is formed from Kinłání, meaning "many houses" or city, Dookʼoʼoosłííd, the name for the San Francisco Peaks but literally "the summit which never melts", and Biyaagi, indicating 'below' (see translations of "below; in a place beneath" on wiktionary): the city below the San Francisco Peaks. The word Kinłání alone may refer to Flagstaff, but also can refer to Durango, Colorado. In Havasupai, Flagstaff is known as Wii Hagnbaj. This is also a name for the San Francisco Peaks, and literally means "snowy mountain".

History

Early history The Sinagua people were a pre-Columbian culture that occupied a large area in Arizona between and 1425 CE. The Northern Sinagua were living in the pine forests of northern Arizona before moving into the area that is now Flagstaff about 700 CE. The 1064 and 1066 eruptions of Sunset Crater covered the area in ash, which greatly enriched the soil for farming; this also caused a population growth in the area, with Ancestral Puebloans and Cohonina people also moving to the Wupatki site near the city.

The Northern Sinagua had various cultural phases, including Sunset Crater, the Rio de Flag (leaving the Picture Canyon site), Angell and Winona, Padre Canyon, Elden Pueblo, Turkey Hill Pueblo, Clear Creek, and Walnut Canyon. The Sinagua peoples left the area by the early 15th century, likely moving north and later becoming the Hopi. The San Francisco Peaks, which overlook Flagstaff, are a sacred site in Hopi culture.

Until western expansion in the 1860s, the Yavapai, specifically the (Northeastern Yavapai), occupied the land up to the San Francisco Peaks. The Yavapai land in the area saw overlap with the land of the Northern Tonto Apache that stretched across the San Francisco Peaks to the Little Colorado River. Of the Northern Tonto Apache, two tribes lived within the area of present-day Flagstaff: the Oak Creek band and the Mormon Lake band. The Mormon Lake band were centered around Flagstaff and were exclusively hunter-gatherers, traveling around places like the foot of the San Francisco Peaks, at Mount Elden, Lake Mary, Stoneman Lake, and Padre Canyon.

19th century

The area of Flagstaff had a wagon road to California in the 1800s, constructed by Edward Fitzgerald Beale's men. The first non-Native settlement in the area was established by Edward Whipple, who opened a saloon on the wagon road in 1871. The first permanent settlement came in 1876, when Thomas F. McMillan built a cabin just north of the present-day main town. McMillan was a key developer of Northern Arizona.

During the 1880s, Flagstaff began to grow, and by 1886, Flagstaff was the largest city on the railroad line between Albuquerque and the West Coast of the United States."Flagstaff Community Profile ." Official City Website . Retrieved on April 11, 2007. In 1888, McMillan purchased an unfinished building that sits at the present-day intersection of Leroux Street and Route 66/Santa Fe Avenue, turning it into a bank and hotel known as the Bank Hotel. Coconino County was created in 1891, and Flagstaff was chosen as its county seat over nearby Williams.

In 1894, A. E. Douglass recommended Flagstaff to Percival Lowell as the site for the Lowell Observatory,P. Lowell to A. E. Douglass, April 16, 1894, Lowell Observatory Archives. where it was built on Mars Hill. Flagstaff also became incorporated as a town in 1894. The city grew rapidly, primarily due to its location along the east–west transcontinental railroad line in the United States. In the 1890s, the Arizona Lumber and Timber Company was founded by the Riordan brothers to process timber. Michael and Tim Riordan worked in Flagstaff, and introduced electricity to the town for this purpose. The Riordan brothers established the first library in Flagstaff. The CO Bar Ranch was opened in about 1886 by the Babbitt brothers for cattle. The Babbitt family would be very influential in northern Arizona for decades. In 1899, the Northern Arizona Normal School was established; it was renamed to Northern Arizona University (NAU) in 1966.

On January 1, 1900, John Weatherford opened the Weatherford Hotel in Flagstaff. Weatherford opened the town's first movie theater in 1911; it collapsed under heavy snowfall a few years later, but he soon replaced it with the Orpheum Theater. The Weatherford Hotel and Orpheum Theater are still in use today.

1912–1969

The state of Arizona was admitted to the Union in 1912. Flagstaff saw its first tourism boom in the early years of the 1900s, becoming known as the City of Seven Wonders, as the "Seven Wonders" of the wider Flagstaff area – listed as the Coconino National Forest, Grand Canyon, Oak Creek Canyon, San Francisco Peaks, Sunset Crater, Walnut Canyon, and Wupatki National Monument – were more widely known.

U.S. Route 66

In 1926, Route 66 was completed and ran through Flagstaff; the Babbitts and Riordans had staunchly supported it for the town. The railroad, which became the Santa Fe Railroad, had largely controlled Flagstaff until this point. The Santa Fe Railroad opened a new depot in Flagstaff in 1926, to combat Route 66. As part of the celebrations, Front Street was renamed Santa Fe Avenue. The people of Flagstaff collectively funded the Hotel Monte Vista, which opened on January 1, 1927, preparing for the next tourism boom. Flagstaff was then incorporated as a city in 1928, with over 3,000 residents, and in 1929, the city's first motel, the Motel Du Beau, was built at the intersection of Beaver Street and Phoenix Avenue. Flagstaff became a popular tourist stop along Route 66, particularly due to its proximity to the natural wonders. In the last years of the 1920s, tourism took over from traditional industries.

During the Great Depression, Route 66 brought unemployed workers heading to California, known as "auto nomads" in Flagstaff, who became unpopular as they could not afford to buy gas or food, financially damaging the city by taxing its resources and not contributing to the economy. Flagstaff had also been highlighted on the map by Clyde Tombaugh's 1930 discovery of Pluto from the Lowell Observatory. However, the importance of Route 66 to cross-country travel, and thus to Arizona's interests on a national level, did mean that it received a large share of state funding through the Depression, with highway maintenance and unemployment acts providing over $1 million of funding in May 1933. In 1935, many residents had enough disposable income to remodel their homes or build new ones.

In 1955, the United States Naval Observatory Flagstaff Station was established. Through the 1950s the city conducted the Urban Renewal Project, improving housing quality in the Southside neighborhood that was largely populated by people of Spanish, Basque, and Mexican heritage. Flagstaff grew and prospered through the 1960s. During the Apollo program in the 1960s, the Lowell Observatory Clark Telescope was used by the United States Geological Survey (USGS) to map the Moon for the lunar expeditions, enabling the mission planners to choose a safe landing site for the lunar modules.Putnam, William Lowell (1984). "The explorers of Mars Hill : a centennial history of Lowell Observatory, 1894–1994." West Kennebunk, ME : Published for Lowell Observatory by Phoenix Pub.

1970s–present