99 Fun Facts About Grand Canyon

In which U.S. state is the Grand Canyon primarily located?

The Grand Canyon, including most of its national park, is situated within the state of Arizona.

What major river is responsible for carving the Grand Canyon?

The Colorado River's relentless flow and erosion over millions of years shaped the immense chasm we know today as the Grand Canyon.

Approximately how long is the Grand Canyon from its eastern to western end?

The Grand Canyon is 277 miles (446 km) long, measured along the Colorado River from Lees Ferry to the Grand Wash Cliffs.

In what year was Grand Canyon officially designated as a National Park?

President Woodrow Wilson signed the act that established Grand Canyon National Park on February 26, 1919, after it had been a national monument.

What is the approximate maximum depth of the Grand Canyon?

Over a mile (1,800 meters), about 6,093 feet at the deepest point, with the whole stack of geological layers exposed on the way down.

Which formation is the oldest exposed rock layer at the bottom of the Grand Canyon?

The Vishnu Schist, part of the Vishnu Basement Rocks, is a metamorphic rock dating back nearly two billion years and is found at the very bottom of the canyon.

What Grand Canyon feature represents a large gap in the rock record?

The Great Unconformity, named by John Wesley Powell, is the surface where Cambrian sedimentary layers rest directly on far older igneous and metamorphic basement rock, spanning up to roughly 1.2 billion years of missing time.

Which large-eared animal, common on the rims, descends to the river corridor only when food and water run scarce?

Mule deer are named for their oversized ears and are the deer most visitors see; unlike bighorn sheep they are not year-round residents of the river corridor.

Who was the first European known to have viewed the Grand Canyon in 1540?

García López de Cárdenas, a Spanish explorer, was the first European recorded to have seen the Grand Canyon, guided by Hopi people.

Which Grand Canyon rim stands highest above sea level?

The Kaibab Plateau tilts, so the North Rim stands more than a thousand feet above the South Rim and receives well over twice as much snow each winter.

Which Native American nation opened the Grand Canyon Skywalk on its reservation in 2007?

The Hualapai Tribe owns and operates the Grand Canyon Skywalk at Eagle Point on its reservation at Grand Canyon West, opened in March 2007.

Roughly how many years ago did the Colorado River begin carving the Grand Canyon?

While some precursor canyons may be older, the modern Colorado River is believed to have established its course and begun carving the Grand Canyon about 5 to 6 million years ago.

What environment do trilobite and brachiopod fossils in the Grand Canyon's layers indicate?

Fossils of marine creatures such as trilobites and brachiopods indicate that many of the Grand Canyon's rock layers were deposited in ancient warm, shallow seas.

Which route drops 4,380 feet from Grand Canyon Village to the Colorado River along a fault line early Havasupai used?

The Bright Angel Trail follows the Bright Angel Fault from Grand Canyon Village to the river, descending about 4,380 feet; with the South Kaibab it is the main mule and hiker route to Phantom Ranch.

Which three fundamental rock classes are all exposed in the Grand Canyon, from basement schists to rim limestone?

Metamorphic Vishnu Schist and igneous Zoroaster Granite form the Inner Gorge, while everything above the Great Unconformity is sedimentary, laid down mostly in shallow seas.

Which 1928 suspension bridge carries the South Kaibab Trail and its mule trains across the Colorado?

The Black Bridge, formally the Kaibab Trail Suspension Bridge, opened in 1928; its 440-foot span is the one mule trains use, while hikers on the Bright Angel route cross the 1960s Silver Bridge.

Which of these is NOT one of the Grand Canyon's five 'life zones'?

Arctic Tundra is not among them; the canyon's five Merriam life zones are Lower Sonoran, Upper Sonoran, Transition, Canadian and Hudsonian, ecologically like travelling from Mexico to Canada.

What type of rock is the Kaibab Limestone, which forms the uppermost rim of the Grand Canyon?

The Kaibab Limestone, found at the very top of the Grand Canyon, is a sedimentary rock layer, formed from ancient marine deposits.

What is the approximate maximum width of the Grand Canyon at its widest point?

The Grand Canyon varies greatly in width, reaching up to 18 miles across at its broadest sections.

Which U.S. President strongly advocated preserving the Grand Canyon and visited it several times?

President Theodore Roosevelt was a vocal proponent of preserving the Grand Canyon and designated it a national monument before it became a national park.

What color is often associated with the Bright Angel Shale layer, due to its minerals?

The Bright Angel Shale often has a greenish hue, largely due to the mineral glauconite, which forms in shallow marine environments.

The Grand Canyon is part of a larger geological feature known as the Colorado what?

The Grand Canyon is carved into the uplifted Colorado Plateau, a vast physiographic province in the Southwestern United States.

Which reintroduced bird, among North America's largest, soars over the Grand Canyon?

The California Condor, North America's largest land bird with a 9.5-foot wingspan, was reduced to 27 birds by 1987; releases at the Vermilion Cliffs began in 1996 and condors have nested in the park since 2003.

Roughly how old is the Kaibab Limestone, the youngest major rock layer at the Grand Canyon's rim?

The Kaibab Limestone, which forms the uppermost rim, is approximately 270 million years old, while the canyon itself is much younger.

Which of these is a small remote community inside the Grand Canyon, reached mainly by foot, mule or helicopter?

Supai Village, capital of the Havasupai Reservation, lies eight miles below the nearest road at Hualapai Hilltop and famously receives its mail by mule train.

In what year did UNESCO inscribe the Grand Canyon as a World Heritage Site?

UNESCO inscribed Grand Canyon National Park on the World Heritage List in 1979, sixty years after the park's creation, for its geology and its long human history.

Which large member of the deer family lives in the Kaibab Plateau forests at the Grand Canyon's higher elevations?

Elk roam the Kaibab Plateau's ponderosa and spruce-fir forests; Arizona's herds descend from Rocky Mountain elk transplanted from Yellowstone in 1913 after the native Merriam's elk went extinct.

Which Grand Canyon rock layer holds abundant evidence of ancient wind-blown sand dunes?

Its large-scale cross-bedding records a desert of quartz dunes that lasted 5 to 10 million years, and the layer also preserves tracks of lizard-like creatures, millipedes and scorpions.

The Grand Canyon's forested rims get winter snow while its floor matches Tucson; the weather varies chiefly with differences in what?

Elevation does it: summer highs in the Inner Gorge routinely top 100 F while winter lows on the rims drop below zero, and Phantom Ranch gets 8 inches of rain a year against 27 on the North Rim.

Which Native American tribe has historical connections to the Grand Canyon and considers it sacred?

In some Hopi traditions the canyon holds the sipapu through which humankind emerged into this world, and Hopi guides led the first Spaniards to the rim in 1540.

Grand Canyon National Park covers roughly how much land?

Grand Canyon National Park covers about 1.2 million acres (1,900 square miles), roughly the size of Delaware, after the 1975 Enlargement Act added Marble Canyon.

What is the average width of the Grand Canyon from rim to rim?

While its width varies, the Grand Canyon averages about 10 miles from rim to rim.

What process did most of the work carving the Grand Canyon?

The Colorado River and its tributaries cut down through layer after layer as the Colorado Plateau rose, exposing nearly two billion years of rock.

Which of these overlooks is on the South Rim, next to the geology museum where the Trail of Time begins?

The other three are all North Rim viewpoints; Yavapai looks straight down at Phantom Ranch and the Inner Gorge.

The world's deepest canyon, deeper than the Grand Canyon, is on which continent?

Asia holds the record: the Yarlung Tsangpo Grand Canyon in Tibet reaches a depth of about 6,000 metres and, at 504.6 km, is also slightly longer than its Arizona namesake.

Which maintained trail descends from the North Rim to the river on the classic rim-to-rim route?

The North Kaibab Trail drops 14 miles from the North Rim to the river, where rim-to-rim hikers cross a suspension bridge to the South Kaibab or Bright Angel trail.

For roughly how long have people lived in and around the Grand Canyon?

Humans have been at the Grand Canyon for roughly 10,000 years: Paleo-Indian projectile points reach back at least that far, while split-twig animal figurines left in Redwall Limestone caves are 3,000 to 4,000 years old.

Which describes the Hermit Formation, the deep-red band just below the Coconino cliffs?

The Hermit Formation is a soft, slope-forming shale and siltstone laid down by streams on a semiarid coastal plain about 280 million years ago; it preserves fossils of ferns, conifers and winged insects.

Who led the first expedition down the Colorado River through the Grand Canyon in 1869?

John Wesley Powell, a one-armed Civil War veteran, led nine men in four boats from Green River, Wyoming, on 24 May 1869 and emerged below the Grand Canyon on 30 August.

Which formation lies directly beneath the Kaibab Limestone at the canyon rim?

The Toroweap Formation, a Permian mix of limestone, sandstone and gypsum, sits directly beneath the Kaibab Limestone and above the Coconino Sandstone; it is named for Toroweap Valley on the north side.

The 'Trail of Time' on the South Rim is an interpretive exhibit designed to educate visitors about what?

The Trail of Time teaches the canyon's geological history: the 4.56 km rim walk is scaled so each metre equals one million years, with bronze markers set into the path.

Beneath its red-stained face, what is the Grand Canyon's sheer Redwall cliff actually made of?

Gray limestone and dolomite, dark brown to bluish-gray, lie behind the Redwall's face; the red is a stain from rainwater dripping off the iron-rich Supai and Hermit beds above.

What repeatedly blocked the Colorado River inside the western Grand Canyon during the last million years?

Lava dams formed as volcanoes erupted along the western canyon, backing up lakes as deep as 2,000 feet; each eventually failed, and the volcanic rocks they left are the canyon's youngest.

Which of these is an endemic mammal of the Grand Canyon region?

The tassel-eared Kaibab squirrel lives only in the ponderosa forests of the North Rim and nearby Kaibab National Forest, an area of about 20 by 40 miles.

Roughly how old is the Grand Canyon Supergroup, lying above the Vishnu Basement Rocks and below the Paleozoic strata?

About 800 million years ago the whole supergroup was tilted 15 degrees and block-faulted, and in places all 12,000 feet of it was later eroded away entirely.

During which geological period were Grand Canyon layers like the Bright Angel Shale deposited in warm shallow seas?

The Bright Angel Shale, along with other formations of the Tonto Group, was deposited during the Cambrian Period as ancient seas advanced and retreated.

Which geological process gives many of the canyon walls their 'stair-step' appearance?

The 'stair-step' pattern of the Grand Canyon walls is a result of differential erosion, where softer rock layers erode more quickly than harder ones, creating ledges and slopes.

The Tonto Platform, the broad bench above the Inner Gorge, is floored by which resistant sandstone?

The Tonto Platform is floored by the resistant Tapeats Sandstone, the Tonto Group's basal layer; the softer Bright Angel Shale above it erodes back into the broad bench the Tonto Trail follows.

What is the approximate elevation of the South Rim of the Grand Canyon above sea level?

The South Rim averages about 7,000 feet (2,100 m) above sea level, some 4,400 feet above the Colorado River at Phantom Ranch.

Lake Mead, at the Grand Canyon's western end, is held back by which 1930s dam just outside Las Vegas?

Hoover Dam's workers got a town built from scratch for them, Boulder City, Nevada, about 30 miles southeast of Las Vegas.

Glen Canyon Dam, just upstream of the canyon, impounds which reservoir?

Lake Powell, impounded by the 710-foot Glen Canyon Dam from 1963, drowned a series of sandstone gorges and first filled to capacity in 1980.

Besides rafting or hiking, guests traditionally reach Phantom Ranch riding which animal?

Mule trips carried about two-thirds of the ranch's guests into the 1950s, and nearly every building material except rock came down the trail the same way.

The Skywalk at Grand Canyon West lets visitors walk out over the rim on a floor of what?

The Skywalk floor is glass: four layers of low-iron Saint-Gobain panes bonded with a DuPont interlayer, and its curved side walls use two layers.

Why did the Santa Fe end Grand Canyon Railway passenger service in 1968?

Competition from the automobile emptied the trains: only three passengers rode the last Santa Fe run in July 1968, freight ended in 1974, and private investors relaunched passenger service in 1989.

Hopi House, beside El Tovar, was built by the Fred Harvey Company as a market for what?

Hopi House sold Native American crafts, with Hopi artisans working on site; modelled on the pueblo at Oraibi, it opened two weeks before El Tovar next door.

Brighty, hero of the 1953 novel Brighty of the Grand Canyon, is what kind of animal?

Brighty was a burro: the real animal roamed the canyon from about 1892 to 1922, and a bronze statue of him stood in the lobby of the North Rim's Grand Canyon Lodge.

Which architect designed Hopi House, Hermits Rest and the Desert View Watchtower?

Mary Colter, the Fred Harvey Company's chief architect and decorator for nearly four decades, designed 21 landmark buildings for the railway concessioner, including the 1932 Desert View Watchtower.

What ignited the Dragon Bravo Fire that destroyed the North Rim's Grand Canyon Lodge?

First reported on July 4, the blaze burned 145,504 acres and 113 structures before it was declared contained at the end of September.

Roughly how many visitors does Grand Canyon National Park draw each year?

The park draws about 5 million visits a year: 4.9 million recreational visits in 2024, short of its 2018 record of 6.4 million, among the highest of any US national park.

The name Havasupai translates as 'people of the' what?

Havasupai means 'people of the blue-green water', a reference to Havasu Creek, whose calcium-rich water turns its famous falls turquoise; the tribe has lived in the canyon for at least 800 years.

What shape is the cantilevered Grand Canyon Skywalk at Eagle Point?

The Skywalk is a horseshoe-shaped steel walkway that juts about 70 feet beyond the rim at Eagle Point; it opened in March 2007 outside the national park, where in-canyon stunts and flights are allowed.

The Grand Canyon Railway runs to the South Rim from which Arizona town?

The Grand Canyon Railway's 64-mile branch from Williams was finished on 17 September 1901, and the restored line reopened on the same date 88 years later, in 1989.

Grand Canyon Lodge on the North Rim burned down in 1932 and again in which year?

The rebuilt lodge, open since June 1937 after the 1932 fire destroyed its four-year-old predecessor, was destroyed in July 2025 by the Dragon Bravo Fire.

Near its confluence with the Colorado, the Little Colorado River is normally what colour?

The Little Colorado runs bright blue from dissolved calcium carbonate that also builds travertine dams, the same chemistry as Havasu Creek; its confluence at river mile 61 marks the end of Marble Canyon.

In which year did the El Tovar Hotel open on the South Rim?

El Tovar opened on 14 January 1905, built by the Santa Fe Railway; it is named for Pedro de Tovar, whose reports from the Hopi of a great river prompted the 1540 expedition to the rim.

How tall is the stone Desert View Watchtower on the South Rim?

The Desert View Watchtower stands 70 feet tall; before settling the design, its architect had a platform of the same height erected to test the views and modelled the tower in clay.

In what year did Phantom Ranch, the lodge on the canyon floor, open?

Phantom Ranch opened in 1922 on the site of an earlier tent camp; a December 1966 flash flood on Bright Angel Creek later stranded guests and wrecked much of the nearby campground.

The Grand Canyon Depot is one of three surviving US rail depots built chiefly of what?

The 1910 Grand Canyon Depot, designed by Francis Wilson, is built of logs to echo the El Tovar Hotel across the street and is one of three surviving log depots in the United States.

Brothers Ellsworth and Emery Kolb ran what business at the Bright Angel trailhead from 1904?

A photo studio at the Bright Angel trailhead doubled as the Kolbs' family home, and Emery kept it going until his death in 1976.

The 1956 mid-air collision over the canyon that killed 128 led to the creation of what?

The collision led to the Federal Aviation Act of 1958, which created the Federal Aviation Agency and absorbed the old Civil Aeronautics Administration; it became the Federal Aviation Administration on joining the Department of Transportation in 1967.

Havasu Falls drops roughly how far into its plunge pools?

Havasu Falls drops about 100 feet over a travertine lip into its plunge pools; flash floods keep reshaping it, and it lies about two miles below Supai, itself an 8-mile hike from Hualapai Hilltop.

Navajo Bridge carries US 89A across which upper stretch of the Colorado?

Navajo Bridge spans Marble Canyon near Lees Ferry; the 1929 crossing opened the Arizona Strip and the North Rim to motorists, and a twin span took over traffic in 1995.

Which stretch of whitewater is rated the canyon's most severe at every water level?

Lava Falls Rapid, near river mile 180, is rated 10 on the canyon's 1-10 scale at every water level; it sits below remnants of the lava flows that repeatedly dammed the river.

Which Civil War battle cost John Wesley Powell most of his right arm?

At Shiloh on 6 April 1862 a Minie ball shattered Powell's right forearm as he raised his arm to signal fire; the amputation left nerve pain for the rest of his life.

What is the first named viewpoint on the South Kaibab Trail, under a mile down?

Ooh Aah Point, 0.9 miles below the trailhead, is the first named stop on the South Kaibab Trail, which follows a ridge for wide views but has no water anywhere along its length.

The park airport sits in which gateway town, a mile from the South Rim entrance?

Grand Canyon National Park Airport lies in Tusayan, the gateway town just south of the park entrance; the current field opened in 1965, replacing an older strip near Red Butte.

The 2023 Baaj Nwaavjo I'tah Kukveni monument made permanent a moratorium on mining what?

The monument made permanent the 2012 twenty-year ban on new uranium mining claims; its name joins Havasupai words for 'where tribes roam' with Hopi words for 'our ancestral footprints'.

The Spanish party that reached the South Rim in 1540 had been sent to find what?

Coronado's expedition was hunting the Seven Cities of Cibola, the fabled golden cities; he dispatched a detachment, guided by Hopi people, to the rim between today's Desert View and Moran Point.

Who jumped a side gorge of the canyon on a motorcycle at Grand Canyon West in 1999?

Robbie Knievel, Evel's son, cleared a 228-foot side gorge on 20 May 1999 at Grand Canyon West, on tribal land outside the national park, in a televised stunt promoting tribal tourism.

Who wrote the 1953 children's novel Brighty of the Grand Canyon?

Marguerite Henry, also author of Misty of Chincoteague, wrote Brighty of the Grand Canyon in 1953; a film adaptation followed in 1967, and Peter Jepsen's bronze statue honours its hero.

Buckey O'Neill, whose cabin survives at Bright Angel Lodge, died in 1898 in which unit?

Buckey O'Neill, a former Prescott mayor nicknamed for 'bucking the tiger' at faro, was a captain in the Rough Riders, shot dead at San Juan Heights moments after joking that no Spanish bullet could kill him.

Newlyweds Glen and Bessie Hyde vanished while running the river in which year?

Glen and Bessie Hyde disappeared in November 1928; last seen near Hermit Rapid on 18 November, they left a scow found intact downstream, and Bessie would have been the first woman known to run the canyon.

Of the ten men on the first 1869 river expedition, how many completed the whole journey?

Six finished: Frank Goodman quit at the Uinta River resupply stop, and the Howland brothers and William Dunn hiked out at Separation Rapid two days from the end and were never seen again.

Ralph Cameron, who charged tolls on the Bright Angel Trail, went on to hold which office?

Ralph Cameron served as a U.S. senator from Arizona from 1921 to 1927, having fortified his grip on the trail with dozens of mining claims, including one covering the Devil's Corkscrew switchbacks.

Which native fish's Grand Canyon stronghold is the Little Colorado River?

The humpback chub's namesake hump is thought to steer water over the body and hold position in swift current; its largest population spawns in the warm Little Colorado, and it was downlisted from endangered to threatened in 2021.

Toroweap Overlook, where the river lies straight below, stands how far above the water?

Toroweap Overlook drops 3,000 feet sheer to the Colorado, the park's only viewpoint looking straight down at the river; it is reached by some 60 miles of unpaved road in the remote Tuweep area.

The tribe that owns the Skywalk has its capital in which town?

Peach Springs, on historic Route 66, is the tribal capital; the reservation, created by executive order in 1883, includes 108 miles of Colorado River frontage along the canyon's south side.

Who designed the El Tovar Hotel for the Santa Fe Railway?

Charles Whittlesey, the Santa Fe Railway's chief architect, designed El Tovar in a Swiss chalet-and-hunting-lodge style and set it just 20 feet from the rim, a short walk from the depot.

Which Hopi artist painted the murals inside the Desert View Watchtower?

Fred Kabotie painted the Watchtower's Hopi Room murals, including the Snake Legend, when the tower opened in 1932-33, while Fred Geary added petroglyph-style decorations on the upper floors.

John Hance, the canyon's first non-Native resident, opened its first tourist trail when?

John Hance, who arrived at the canyon in 1883, opened the Old Hance Trail to tourists in 1884; famous for tall tales, he was the first person buried in what became the Grand Canyon Pioneer Cemetery.

Lees Ferry is named for John D. Lee, the only man executed for which 1857 atrocity?

John D. Lee, the only man executed for the 1857 Mountain Meadows Massacre, settled the crossing with his wife Emma at a homestead called Lonely Dell and faced a firing squad at the massacre site in 1877.

Which president proclaimed the Grand Canyon Forest Reserve in 1893?

Benjamin Harrison, who as a senator had introduced Grand Canyon park bills in 1882, 1883 and 1886 without success, proclaimed the Grand Canyon Forest Reserve on 20 February 1893.

Hermits Rest is named for Louis Boucher, who made his living as what?

Louis Boucher was a prospector: the Canadian-born loner staked mining claims below the site around 1891 and guided occasional tourists; the 1914 rest house marks the end of Hermit Road.

River-running pioneer Georgie White was famous for piloting her motor rig dressed in what?

Georgie White piloted her triple-raft 'G-rigs' in a leopard-print leotard; the first woman to run commercial trips through the canyon, she guided clients she called her 'Royal River Rats' from the 1950s into the 1990s.

Clarence Dutton, author of the 1882 Tertiary History of the canyon, coined which term?

Clarence Dutton coined 'isostasy', the idea of crustal blocks floating in balance on the mantle, in an 1882 footnote and developed it in an 1889 paper; he also studied the 1886 Charleston earthquake.

Before a 1910 flood cut its notch, sheet-like Havasu Falls went by what name?

Havasu Falls was called Bridal Veil Falls when it poured as a wide sheet over the travertine; a 1910 flood cut the notch that concentrated its flow, and Mooney, Beaver and Navajo are neighbouring falls on the same creek.

The original 1929 Navajo Bridge span rises about how far above the Colorado?

The 1929 Navajo Bridge deck stands 467 feet above the Colorado and spans 834 feet; a twin 1995 span beside it carries today's traffic while the original serves pedestrians.

Who built the 1907 tent camp on Bright Angel Creek that preceded Phantom Ranch?

David Rust built the camp in 1907 and strung a cable tramway across the river to ferry his guests; he planted cottonwoods for shade beside Bright Angel Creek.

Tuweep, the Park Service's name for the Toroweap area, is a Paiute word meaning what?

Tuweep is Paiute for 'the earth', while Toroweap means 'dry or barren valley'; the name was first applied to a small Mormon ranching settlement in the valley before the Park Service adopted it.