Southwestern United States
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50 free Southwestern United States trivia questions with answers — geography quiz, new questions added Oct 2026.
The American Southwest is a land of red rock, cactus country and roads that run straight to the horizon. Arizona and New Mexico sit at its heart, and most school maps add Texas and Oklahoma to complete the region. Its story runs from ancient cliff dwellings and Spanish missions to cattle drives, oil booms and the space age. This quiz covers the region the way a good road trip would: the states and their capitals, the deserts, rivers and national parks, the Native peoples and Spanish settlers who shaped it, the outlaws and lawmen of the frontier, and the food, wildlife and local quirks that give each state its character. The opening questions cover the famous sights and stories; later ones reward people who know the back roads. It suits a class studying the Southwest region, a family planning a trip, or anyone curious about how much they know about Arizona and New Mexico in particular. Every answer comes with a short explanation, so a wrong guess still teaches something, and the questions can be printed for use on paper.
30 of 50 questions with answers and explanations. Play the quiz
Q 01Which River Thames crossing was sold in 1968, shipped across the Atlantic and rebuilt in Lake Havasu City, Arizona?
London Bridge
London Bridge was bought by developer Robert McCulloch to draw home buyers to the desert town he had founded. Only its outer granite blocks made the trip, to face a new structure.
Q 02Which New Mexico city became a byword for UFOs after the Army said in 1947 it had recovered a flying disc?
Roswell
Roswell lent its name to the incident even though the debris fell on ranchland about 75 miles to the north. It came from a secret balloon built to detect Soviet nuclear tests.
Q 03Which fire-prevention mascot got a living namesake in 1950, when a young survivor was pulled from a New Mexico blaze?
Smokey Bear
Smokey Bear the poster character dates from 1944, six years before the real cub. The rescued black bear was first called Hotfoot Teddy, then lived at the National Zoo in Washington.
Q 04Which state capital sits about 7,000 feet above sea level, higher than any other in the United States?
Santa Fe
Santa Fe is also the oldest state capital in the country, picked by Spain as a provincial capital in 1610. Denver, the famous Mile High City, sits well below it.
Q 05Which Texas city is the radio call sign of NASA's Mission Control, which guided Apollo astronauts to the Moon?
Houston
Houston has run American crewed spaceflights since Gemini 4 in June 1965. Earlier missions were controlled from Cape Canaveral in Florida.
Q 06Which plant, a symbol of the Old West on screen, is really a Russian import that arrived in contaminated flaxseed?
Tumbleweed
Tumbleweed is mostly Russian thistle, which turned up in South Dakota in the 1870s. The dry plant snaps off at the stem and rolls in the wind, shedding seeds as it goes.
Q 07New Mexico's official state question asks diners to choose between which two kinds of chile?
Red or green
Red or green is asked so often in New Mexico restaurants that it became the official state question. Diners who want both sauces on one plate ask for Christmas.
Q 08Which theme park chain takes its name from the nations that have ruled Texas, from Spain to the Confederacy?
Six Flags
Six Flags began in 1961 as a single park in Arlington, between Dallas and Fort Worth. The name counts Spain, France, Mexico, the Republic of Texas, the United States and the Confederacy.
Q 09Which state meets Arizona, New Mexico and Colorado at the Four Corners, the only point shared by four American states?
Utah
Utah completes the set, so a visitor on hands and knees can be in four states at once. Early surveyors made small errors, yet the markers they placed became the legal borders.
Q 10Which federal holiday marks the 1865 day a Union general reached Galveston, Texas, to enforce the end of slavery?
Juneteenth
Juneteenth blends June and nineteenth, the date Major General Gordon Granger landed on the island. It became a federal holiday in 2021, the first new one in almost four decades.
Q 11Which Arizona gorge, cut by the Colorado River, exposes rocks almost two billion years old in its mile-high walls?
Grand Canyon
The Grand Canyon is 277 miles long and up to 18 miles wide. Theodore Roosevelt visited in 1903 and became a leading champion of its protection.
Q 12Which city in the Valley of the Sun is the most populous state capital in the United States?
Phoenix
Phoenix counted over 1.6 million residents at the 2020 census, far more than any other state capital. Its Valley of the Sun nickname began as a 1930s slogan to boost tourism.
Q 13Which giant cactus of Arizona often waits 75 years or more before growing its first arm?
Saguaro
Q 21Which dam in Black Canyon, on the Arizona–Nevada border, was officially named Boulder Dam between 1933 and 1947?
Hoover Dam
Hoover Dam was handed to the government in March 1936, more than two years ahead of schedule. Lake Mead had begun filling behind it before the last concrete was poured.
Q 22Which Arizona silver-mining town saw the 1881 gunfight at the O.K. Corral, which lasted only about thirty seconds?
Tombstone
Tombstone owes its name to a warning: prospector Ed Schieffelin was told that all he would find out there was his own gravestone. He struck silver instead.
Q 23Which landscape of sandstone buttes on Arizona's northern border did John Ford film in Stagecoach and The Searchers?
Monument Valley
Saguaro cacti often live for more than 150 years, and some never grow an arm at all. Their blossom is the state flower of Arizona.
Q 14Which Texas capital draws evening crowds to watch up to 1.5 million bats pour out from under a downtown bridge?
Austin
Austin is home to the world's largest urban bat colony, made up of Mexican free-tailed bats. They spend each summer roosting beneath the Congress Avenue Bridge.
Q 15Which former Spanish mission in Texas fell to Santa Anna's army in 1836 after a 13-day siege?
The Alamo
The Alamo was avenged within weeks at San Jacinto, a battle that was essentially over in 18 minutes. Santa Anna himself was captured there.
Q 16Which New Mexico city hosts the world's largest hot air balloon festival, with over 500 balloons each October?
Albuquerque
Albuquerque held its first Balloon Fiesta in 1972 with just 13 balloons, as the highlight of a radio station's 50th birthday. The nine-day event grew to draw hundreds of thousands of visitors.
Q 17Which cave system in southern New Mexico holds the Big Room, the largest single chamber in North America?
Carlsbad Caverns
Carlsbad Caverns was first explored in 1898 by a teenager, Jim White, who climbed down on a homemade wire ladder. The Big Room alone is almost 4,000 feet long.
Q 18Which Apache leader surrendered at Skeleton Canyon, Arizona, in 1886 and later rode in a president's inaugural parade?
Geronimo
Geronimo rode down Pennsylvania Avenue on horseback in Theodore Roosevelt's 1905 inaugural parade. The 1886 surrender was his last, after repeated breakouts from the reservation.
Q 19Which highway from Chicago to Santa Monica did John Steinbeck call the Mother Road in The Grapes of Wrath?
Route 66
Route 66 crossed Oklahoma, the Texas Panhandle, New Mexico and Arizona on its 2,448-mile run. It was dropped from the national highway system in 1985 after interstates replaced it.
Q 20Arizona has skipped daylight saving time since 1968, but which tribal land inside the state changes its clocks anyway?
Navajo Nation
The Navajo Nation changes its clocks because it spreads into two neighbouring states that do. The Hopi Reservation, entirely surrounded by it, stays on standard time all year.
Monument Valley's largest buttes rise 1,000 feet above the desert floor. John Ford shot so many Westerns there that the place shaped how audiences picture the whole American West.
Q 24Which outlaw of New Mexico's Lincoln County War was shot dead by Sheriff Pat Garrett at Fort Sumner in 1881?
Billy the Kid
Billy the Kid was born Henry McCarty and also used the alias William H. Bonney. He had broken out of jail that April, killing two deputies, and stayed free for more than two months.
Q 25Which river crosses New Mexico from north to south and then forms the border between Texas and Mexico?
Rio Grande
The Rio Grande runs 1,896 miles, which makes it the fourth-longest river in the United States. South of the border it goes by another name, the Río Bravo.
Q 26Which forced march of the 1830s drove the Cherokee and four other nations from the Southeast to what became Oklahoma?
Trail of Tears
The Trail of Tears uprooted about 60,000 people after the Indian Removal Act of 1830. The Choctaw were the first nation to be removed, in 1831, and set the pattern for the rest.
Q 27Which New Mexico national park protects the world's largest field of gypsum dunes, ringed by a missile range?
White Sands
White Sands holds about 4.5 billion tons of gypsum sand in dunes up to 60 feet tall. The park has been hemmed in by military land since 1941.
Q 28Which TV drama about chemistry teacher Walter White was filmed in New Mexico instead of its planned California setting?
Breaking Bad
Breaking Bad was first written for Riverside, California. Sony suggested the move because New Mexico offered the production better financial terms.
Q 29In which Arizona mountain city did Clyde Tombaugh discover Pluto at the Lowell Observatory in 1930?
Flagstaff
Flagstaff was picked for the observatory in 1894 for its elevation and dark night skies. In 2001 it was recognised as the world's first International Dark-Sky City.
Q 30Arizona became the 48th state, the last of the contiguous ones, on which holiday in 1912?
Valentine's Day
Valentine's Day 1912 completed the map of the 48 contiguous states. New Mexico had been admitted as the 47th state only five weeks earlier, on January 6.