paragraph_text: Oklahoma has four primary mountain ranges: the Ouachita Mountains, the Arbuckle Mountains, the Wichita Mountains, and the Ozark Mountains. Contained within the U.S. Interior Highlands region, the Ozark and Ouachita Mountains mark the only major mountainous region between the Rocky Mountains and the Appalachians. A portion of the Flint Hills stretches into north-central Oklahoma, and near the state's eastern border, Cavanal Hill is regarded by the Oklahoma Tourism & Recreation Department as the world's tallest hill; at 1,999 feet (609 m), it fails their definition of a mountain by one foot.

paragraph_text: People's Republic of China 248 cm 8 ft 1 3⁄4 in Zeng Jinlian Confirmed by Guinness World Records as tallest female ever. Suffered from spine curvature and could not stand at full height. Tallest recorded Chinese person and world's tallest person shortly before her death. 1964 -- 1982 (17)

paragraph_text: Tongshanjiabu is a mountain in the Himalayas. At tall, Tongshanjiabu is the 103rd tallest mountain in the world. It sits in the disputed border territory between Bhutan and China. Tongshanjiabu has never been officially climbed.

paragraph_text: Grüner See (Green Lake) is a lake in Styria, Austria in a village named Tragöß. The lake is surrounded by the Hochschwab Mountains and forests. The name "Green Lake" originated because of its emerald-green water. The clean and clear water comes from the snowmelt from the karst mountains and has a temperature of . During winter, the lake is only deep and the surrounding area is used as a county park.

paragraph_text: Green Boots is the name given to the unidentified corpse of a climber that became a landmark on the main Northeast ridge route of Mount Everest. Though his identity has not been officially confirmed, he is believed to be Tsewang Paljor, an Indian climber who died on Mount Everest in 1996. The term "Green Boots" originated from the green Koflach mountaineering boots that are on the feet of the corpse. All expeditions from the north side encountered the body curled in the limestone alcove cave at . In 2006, a different climber, David Sharp, died during a solo climb in what is known as "Green Boots' Cave".

paragraph_text: Grön eld (Fire in Green) is a glass sculpture by Vicke Lindstrand at Järnvägstorget, which is located in front of Umeå Central Station, in Umeå, Sweden. It was, at nine meters, the tallest glass sculpture in the world at the time of its inauguration in 1970.

paragraph_text: Big John Dick Mountain is a summit in Fannin County, Georgia, in the United States. With an elevation of , Big John Dick Mountain is the 196th tallest mountain in Georgia.

paragraph_text: Michael W. Taylor (born 25 April 1966, in Los Angeles) is a leading discoverer of champion and tallest trees - most notably coast redwoods. In 2006, Taylor co-discovered the tallest known tree in the world, a coast redwood ("Sequoia sempervirens") now named "Hyperion". He also discovered "Helios" and "Icarus", the 2nd and 3rd tallest.

paragraph_text: Chimborazo, 6,267 metres (20,561 ft). Presumed highest from sixteenth century until the beginning of the 19th century. Not in the top 100 highest mountains when measured from sea level, however due to the earth's equatorial bulge this is the farthest point from the Earth's center. Nanda Devi, 7,816 metres (25,643 ft). Presumed highest in the world before Kangchenjunga was sighted in an era when Nepal was still closed to the outside world. Now known to be the 23rd highest mountain in the world. Dhaulagiri, 8,167 metres (26,795 ft). Presumed highest from 1808 until 1847. Now known to be the 7th highest mountain in the world. Kangchenjunga, 8,586 metres (28,169 ft). Presumed highest from 1847 until 1852. Now known to be the 3rd highest mountain in the world. Mount Everest, 8,848 metres (29,029 ft). Established as highest in 1852 and officially confirmed in 1856. K2, 8,611 metres (28,251 ft). Discovered in 1856 before Mt. Everest was officially confirmed, K2's elevation became something of an enigma until it was officially resolved at a later date. News media reported in 1986 that satellite measurements by the University of Washington during an expedition to K2 by George Wallenstein had given a height between 29,064 feet (8,859 m) and 29,228 feet (8,909 m). This erroneous figure was quickly retracted, and K2's status as second highest was reaffirmed.

paragraph_text: A cell division under microscope was first discovered by German botanist Hugo von Mohl in 1835 as he worked over Green algae Cladophora glomerata.

paragraph_text: At 548 ft (167 m), including the statue of city founder William Penn atop its tower, City Hall was the tallest habitable building in the world from 1894 to 1908. It remained the tallest in Pennsylvania until it was surpassed in 1932 by the Gulf Tower in Pittsburgh. It was the tallest in Philadelphia until 1986 when the construction of One Liberty Place surpassed it, ending the informal gentlemen's agreement that had limited the height of buildings in the city to no higher than the Penn statue.

paragraph_text: First Canadian Place (originally First Bank Building) is a skyscraper in the Financial District of Toronto, Ontario, at the northwest corner of King and Bay streets, and serves as the global operational headquarters of the Bank of Montreal. At , it is Canada's tallest skyscraper and the 15th tallest building in North America to structural top (spires) and 9th highest to the roof top, and the 105th tallest in the world. It is the third tallest free-standing structure in Canada, after the CN Tower (also in Toronto) and the Inco Superstack chimney in Sudbury, Ontario. The building is owned by Brookfield Office Properties, putting it in co-ownership with the neighbouring Exchange Tower and Bay Adelaide Centre as well as various other office spaces across Downtown Toronto.

paragraph_text: Nohkalikai Falls is the tallest plunge waterfall in India. Its height is 1115 feet (340 metres), making it as the highest waterfall in India. The waterfall is located near Cherrapunji, one of the wettest places on Earth. Nohkalikai Falls are fed by the rainwater collected on the summit of comparatively small plateau and decrease in power during the dry season in December - February. Below the falls there has formed a plunge pool with unusual green colored water.

paragraph_text: Mount Whitney is the tallest mountain in California, as well as the highest summit in the contiguous United States and the Sierra Nevada -- with an elevation of 14,505 feet (4,421 m). It is located on the boundary between California's Inyo and Tulare counties, 84.6 miles (136.2 km) west - northwest of the lowest point in North America at Badwater Basin in Death Valley National Park at 282 ft (86 m) below sea level. The west slope of the mountain is in Sequoia National Park and the summit is the southern terminus of the John Muir Trail which runs 211.9 mi (341.0 km) from Happy Isles in Yosemite Valley. The east slope is in the Inyo National Forest in Inyo County.

paragraph_text: Mons Huygens is the Moon's tallest mountain (but not its highest point). It is about high and is located in the Montes Apenninus. Adjacent to the west is Mons Ampère. The Montes Apenninus were formed by the impact that created Mare Imbrium. The mountain was named after the Dutch astronomer, mathematician and physician Christiaan Huygens.

paragraph_text: Galdhøpiggen is the tallest mountain in Norway, Scandinavia and Northern Europe, at 2,469 m (8,100 ft) above sea level. It is in the municipality of Lom (in Oppland), in the Jotunheimen mountain area.

paragraph_text: Mount Genecand () is a mountain at the head of Barilari Bay between Lawrie Glacier and Weir Glacier, on the west coast of Graham Land, Antarctica. It was photographed by Hunting Aerosurveys Ltd in 1955–57, and mapped from these photos by the Falkland Islands Dependencies Survey. It was named by the UK Antarctic Place-Names Committee in 1959 for Félix-Valentin Genecand (1878–1957), a Swiss mountaineer who invented the Tricouni nail for climbing boots shortly before World War I.

paragraph_text: The Inco Superstack in Sudbury, Ontario, with a height of , is the tallest chimney in Canada and the Western hemisphere, and the second tallest freestanding chimney in the world after the GRES-2 Power Station in Kazakhstan. It is also the second tallest freestanding structure of any type in Canada, behind the CN Tower but ahead of First Canadian Place. It is the 40th tallest freestanding structure in the world. The Superstack is located on top of the largest nickel smelting operation in the world at Vale Inco's Copper Cliff processing facility in the city of Greater Sudbury.

paragraph_text: Olympus Mons (/ əˌlɪmpəs ˈmɒnz, oʊ -, - ˈmɒns /; Latin for Mount Olympus) is a very large shield volcano on the planet Mars. By one measure, it has a height of nearly 25 km (13.6 mi or 72,000 ft). Olympus Mons is about two and a half times Mount Everest's height above sea level. It is the largest volcano, the tallest planetary mountain, and the second tallest mountain in the Solar System compared to Rheasilvia on Vesta. It is the youngest of the large volcanoes on Mars, having formed during Mars's Hesperian Period. It had been known to astronomers since the late 19th century as the albedo feature Nix Olympica (Latin for ``Olympic Snow ''). Its mountainous nature was suspected well before space probes confirmed its identity as a mountain.

paragraph_text: Nohkalikai Falls is the tallest plunge waterfall in India. Its height is 1115 feet (340 metres). The waterfall is located near Cherrapunji, one of the wettest places on Earth. Nohkalikai Falls are fed by the rainwater collected on the summit of a comparatively small plateau and decrease in power during the dry season in December - February. Below the falls there has formed a plunge pool with unusual green colored water.

Question: What was the tallest mountain before the one where Green Boots died was discovered?
Answer: Kangchenjunga