Map - Amarillo, Texas (Amarillo)

Amarillo (Spanish for "yellow") is a city in the U.S. state of Texas and the seat of Potter County. It is the 14th-most populous city in Texas and the largest city in the Texas Panhandle. A portion of the city extends into Randall County. The estimated population of Amarillo was 200,393 as of April 1, 2020. The Amarillo-Pampa-Borger combined statistical area had an estimated population of 308,297 as of 2020.

The city of Amarillo, originally named Oneida, is situated in the Llano Estacado region. The availability of the railroad and freight service provided by the Fort Worth and Denver City Railroad contributed to the city's growth as a cattle-marketing center in the late 19th century.

Amarillo was once the self-proclaimed "Helium Capital of the World" for having one of the country's most productive helium fields. The city is also known as "The Yellow Rose of Texas" (as the city takes its name from the Spanish word for yellow), "Yellow City" for its name, and "Rotor City, USA" for its V-22 Osprey hybrid aircraft assembly plant. Amarillo operates one of the largest meat-packing areas in the United States. Pantex, the only nuclear weapons assembly and disassembly facility in the country, is also a major employer. The location of this facility also gave rise to the nickname "Bomb City". The attractions Cadillac Ranch, and Big Texan Steak Ranch are located adjacent to Interstate 40. U.S. Highway 66 also passed through the city.

Large ranches exist in the Amarillo area; among others, the defunct XIT Ranch and the still functioning JA Ranch founded in 1877 by Charles Goodnight and John George Adair. Goodnight continued the partnership for a time after Adair's death with Adair's widow, Cornelia Wadsworth Ritchie Adair, who was then the sole owner from 1887 until her death in 1921.

During April 1887, J. I. Berry established a site for a town after he chose a well-watered section along the way of the Fort Worth and Denver City Railroad, which had begun building across the Texas Panhandle. Berry and Colorado City, Texas, merchants wanted to make their new town site the region's main trading center. On August 30, 1887, Berry's town site won the county seat election and was established in Potter County. Availability of the railroad and freight service after the county seat election made the town a fast-growing cattle-marketing center.

The settlement originally was called Oneida; it later changed its name to Amarillo, which probably derived from yellow wildflowers that were plentiful during the spring and summer or the nearby Amarillo Lake and Amarillo Creek, named in turn for the yellow soil along their banks and shores (Amarillo is the Spanish word for the color yellow). Early residents originally pronounced the city's name more similar to the Spanish pronunciation, which was later displaced by the current pronunciation.

On June 19, 1888, Henry B. Sanborn, who is given credit as the "Father of Amarillo", and his business partner Joseph F. Glidden began buying land to the east to move Amarillo after arguing that Berry's site was on low ground and would flood during rainstorms. Sanborn also offered to trade lots in the new location to businesses in the original city's site and help with the expense of moving to new buildings. His incentives gradually won over people, who moved their businesses to Polk Street in the new commercial district. Heavy rains almost flooded Berry's part of the town in 1889, prompting more people to move to Sanborn's location. This eventually led to another county seat election making Sanborn's town the new county seat in 1893.

By the late 1890s, Amarillo had emerged as one of the world's busiest cattle-shipping points, and its population grew significantly. The city became a grain elevator, milling, and feed-manufacturing center after an increase in production of wheat and small grains during the early 1900s. Discovery of natural gas in 1918 and oil three years later brought oil and gas companies to the Amarillo area.

The United States government bought the Cliffside Gas Field with high helium content in 1927 and the Federal Bureau of Mines began operating the Amarillo Helium plant two years later. The plant was the sole producer of commercial helium in the world for a number of years. The U.S. National Helium Reserve is stored in the Bush Dome Reservoir at the Cliffside facility.

Following the lead of the Fort Worth and Denver City Railroad, the Atchison, Topeka and Santa Fe Railway and Chicago, Rock Island and Pacific Railroad established services to and from Amarillo. Each of these three carriers maintained substantial freight and passenger depots and repair facilities in the city through most of the 20th century and were major employers within the community.