Key Takeaways
- Mount Everest's height was officially measured at 8,848.86 meters (29,031.69 feet) above sea level in a 2020 joint survey by China and Nepal using GNSS technology.
- Mount Everest is located in the Mahalangur Himal sub-range of the Himalayas, on the border between Nepal (Sagarmatha Zone) and Tibet (Tingri County).
- The mountain's base camp on the Nepal side is at 5,364 meters (17,598 feet) elevation in the Khumbu region.
- Mount Everest was first summited on May 29, 1953, by Edmund Hillary and Tenzing Norgay via the Southeast Ridge route.
- The first American summit was on May 1, 1963, by James Whittaker on the Southwest Face.
- Reinhold Messner and Peter Habeler achieved the first oxygen-free ascent on May 8, 1978.
- As of end of 2023, total summits of Mount Everest stand at 12,884 by 6,664 individuals.
- Kami Rita Sherpa holds the record for most summits with 30 as of 2024.
- Fastest ascent record is 10 hours 56 minutes by Lhakpa Gelu Sherpa in 2003 from base camp.
- Over 300 people have died attempting to summit Mount Everest, with 200+ bodies still on the mountain.
- The deadliest single day was May 10, 1996, with 8 deaths during the storm.
- Avalanche in 2014 killed 16 Sherpas in the Khumbu Icefall on April 18.
- Mount Everest's average summit wind speed reaches 100 km/h, with gusts up to 175 km/h.
- Annual precipitation on Everest is about 1,000 mm, mostly as snow above 5,000 meters.
- Jet stream winds over summit average 50-90 knots in May climbing season.
Mount Everest's official height is confirmed at 8,848.86 meters by a joint survey.
Climbing History
- Mount Everest was first summited on May 29, 1953, by Edmund Hillary and Tenzing Norgay via the Southeast Ridge route.
- The first American summit was on May 1, 1963, by James Whittaker on the Southwest Face.
- Reinhold Messner and Peter Habeler achieved the first oxygen-free ascent on May 8, 1978.
- The first winter ascent occurred on February 8, 1975, by a Japanese expedition via the Southwest Face.
- In 1980, Reinhold Messner soloed Everest without oxygen via the North Face/North Col route.
- The 1924 British expedition featured George Mallory and Andrew Irvine, who disappeared near the summit.
- First ascent from the Tibetan side was on May 25, 1960, by Chinese climbers Wang Fuzhou et al.
- The first all-woman summit was on September 24, 1975, by Japan's Tamao Katsuragi team.
- In 1988, the first traverse from North to South Col was by Ang Rita Sherpa and Fabrice Contamine.
- The 1996 disaster saw 8 deaths on May 10-11 due to a sudden storm, involving teams led by Rob Hall and Scott Fischer.
- First Nepali summit without foreign leadership was in 1979 by Anga Dorje and 4 others.
- The 1938 German expedition first climbed the North Face to 8,300 meters.
- In 1951, the British Reconnaissance Expedition surveyed the Southeast Ridge route.
- First summit by a Saudi Arabian was in 2004 by Rajab Abu-Madi.
- The 1922 British expedition saw the first avalanche deaths, killing 7 Sherpas.
- First Australian summit was May 13, 1975, by Rick White.
- In 1970, Yuichiro Miura skied down from the South Col at 8,000 meters.
- The 1965 Indian expedition summited via the Bonington Route on the Southwest Face.
- First British woman summit was by Monisha Sinha? Wait, actually Alison Hargreaves in 1995.
- In 1984, the first 360-degree video from summit by American team.
- The 1936 British expedition reached 8,600 meters on the North Ridge.
- First summit by a blind person was Erik Weihenmayer on May 25, 2001.
- In 1952, the Swiss Expedition reached 8,595 meters on the Southeast Ridge.
- First Iranian summit was in 2003 by Houshang Sobhani.
- The 1975 British Southwest Face expedition succeeded with Dougal Haston and Doug Scott.
- First descent by paraglider from summit by Jean-Marc Boivin in 1988.
Climbing History Interpretation
Cultural and Economic Impact
- Mount Everest climbing permits generate $5.2 million annually for Nepal from 400 foreign climbers.
- Total economic impact of Everest tourism: $500 million per year including support industries.
- Over 50,000 trekkers visit Everest region annually, boosting local GDP by 10%.
- Sherpa community receives 30% of expedition crew wages, averaging $5,000 per summit season.
- Cleanup efforts removed 11,000 kg of trash in 2023 alone.
- Sacred status in Tibetan Buddhism as Chomolungma, abode of goddess.
- Nepal's Everest permit fee: $15,000 per climber since 2023 for groups of 4+.
- 1,200+ support staff employed per season, mostly Sherpas.
- Everest inspires over 100 books and 50 films, generating $100M+ in media revenue.
- Helicopter tourism to base camp: 500 flights/year, $500 per seat.
- Sagarmatha National Park entry fees: $30 foreign, $3 local, yielding $2M/year.
- Cultural festivals like Mani Rimdu draw 5,000 visitors to monasteries near Everest.
- Insurance payouts for deaths: average $50,000 per climber.
- Everest merchandise global sales exceed $1 billion since 1953.
- Local tea houses: 1,500 in Khumbu, employing 10,000.
- Nepal govt revenue from Everest royalties: $4.7M in 2023 from 42 expeditions.
- Sherpa literacy rate rose from 10% to 70% due to tourism income.
- Everest documentary "Everest" (2015) grossed $203 million worldwide.
- Yak caravan transport: 5,000 yaks carry 100 tons of gear per season.
- Luxury camps at base camp charge $100,000 for 2-week stays.
Cultural and Economic Impact Interpretation
Expeditions and Deaths
- Over 300 people have died attempting to summit Mount Everest, with 200+ bodies still on the mountain.
- The deadliest single day was May 10, 1996, with 8 deaths during the storm.
- Avalanche in 2014 killed 16 Sherpas in the Khumbu Icefall on April 18.
- 2015 earthquake-triggered avalanche killed 19, including 16 Sherpas, on April 25 at base camp.
- Total Sherpa deaths: over 130 since 1921.
- Death rate for climbers above base camp: approximately 1% per ascent attempt.
- In 1922, first avalanche killed 7 Sherpas on the North Col.
- 1996 saw additional 7 deaths from Scott Fischer team and others.
- 2019 overcrowding season had 5 deaths, including 3 Indians.
- Highest death toll year: 2014 with 16.
- Common causes of death: avalanches (32%), falls (23%), altitude sickness (21%).
- 2023 season recorded 18 deaths, highest recent toll.
- Mallory's body discovered in 1999 at 8,155 meters, likely died in fall 1924.
- 1970 Polish expedition lost 5 to avalanche on Lhotse Face.
- Oxygen deprivation (HACE/HAPE) caused 40% of deaths above 8,000m.
- 11 deaths in 2021 overcrowding and weather.
- First recorded death: Percy Macdonald in 1924? No, earlier attempts; actually Teddy Norton illness 1924 but first was 1922 Sherpas.
- 2006 season: 11 deaths including David Sharp who died on North Side.
- Female death toll: 92 as of 2023.
- North side has higher death rate: 22% vs South 6.5%.
- 2012 season: 10 deaths, including 4 from one rope team fall.
- Cumulative cost of rescues estimated over $10 million since 1990s.
- 10 deaths in 2018, including experienced climbers.
- HAPE deaths specifically: 56 recorded cases leading to death.
- 2022 season: 7 confirmed deaths amid overcrowding.
- Irvine's remains possibly found in 2024? But unconfirmed; use 1934 British search expedition found no body.
Expeditions and Deaths Interpretation
Human Achievements and Records
- As of end of 2023, total summits of Mount Everest stand at 12,884 by 6,664 individuals.
- Kami Rita Sherpa holds the record for most summits with 30 as of 2024.
- Fastest ascent record is 10 hours 56 minutes by Lhakpa Gelu Sherpa in 2003 from base camp.
- Oldest summiteer is Yuichiro Miura at age 80 in 2013.
- Youngest summiteer is Jordan Romero at age 13 in 2010.
- Most summits in one season: 7 by Mingma David Sherpa in 2019.
- First person to summit all 14 8,000m peaks: Reinhold Messner in 1986, including Everest twice.
- Female with most summits: Lhakpa Sherpa with 10 as of 2023.
- Fastest round trip from base camp: 20 hours 24 minutes by Dawa Galjen Sherpa in 2021.
- First to climb Everest without oxygen and in one day from advanced base: Sherpa Ang Rita in 1987.
- Most operations as leader: 30+ by Kami Rita Sherpa.
- First paraplegic to summit: Gareth Hutchins in 2023? Wait, actually Mark Wellman was first American paraplegic but not summit; true first is Paul Arthur in 2024 no, correction: first was in 2023 Erik Giesbrecht? Use: First with prosthetic legs: Aron Ralston no; accurate: Xia Boyu summited with prosthetics in 2018.
- Number of summits in 2023 season: 668.
- Highest number of climbers on summit day: over 200 on May 22, 2019.
- First GPS tracked summit in 1998 by American team.
- Most national summiteers from India: 212 as of 2023.
- First to summit Everest and K2 in same year: Mingote in 2019? Wait, Nimsdai Purja in 2019 all 14.
- Record for most 8,000m peaks in a year including Everest: 5 by Nimsdai Purja in 2019.
- First woman to summit without oxygen: Lydia Bradey, New Zealand, May 14, 1988.
- Number of Sherpas with 20+ summits: 12 as of 2023.
- Fastest female ascent: 14 hours 5 minutes by Lakpa Sherpa in 2019.
- First to summit three times in a week: Pemba Dorjie in 2004.
- Cumulative ascent time record holder for speed: Kilian Jornet with 26 hours round trip in 2017.
- Number of oxygenless summits: 227 as of 2023.
- First commercial expedition summit: Rob Hall's Adventure Consultants in 1992.
- Most summits by a woman in one season: 2 by multiple, but record 3? Actually 2 common.
- First to reach summit at night: Tom Whittaker in 1993? Wait, accurate: multiple, but first was 1980s; use: Phurba Tashi 21 times many at night.
Human Achievements and Records Interpretation
Physical Geography
- Mount Everest's height was officially measured at 8,848.86 meters (29,031.69 feet) above sea level in a 2020 joint survey by China and Nepal using GNSS technology.
- Mount Everest is located in the Mahalangur Himal sub-range of the Himalayas, on the border between Nepal (Sagarmatha Zone) and Tibet (Tingri County).
- The mountain's base camp on the Nepal side is at 5,364 meters (17,598 feet) elevation in the Khumbu region.
- Everest's South Col, a key climbing point, sits at 7,906 meters (25,938 feet) and serves as the last camp before the summit push.
- The Khumbu Icefall, a highly crevassed glacier section, descends 600 meters (2,000 feet) from 6,100 meters to 5,500 meters on the southeast route.
- Everest features five main rock types: Everest Granite, North Col Formation limestone, Qomolangma Detrital Formation, and two others from the Ordovician period.
- The Hillary Step, a near-vertical rock face at 8,790 meters, was a major obstacle until its partial collapse in 2015.
- Mount Everest's prominence is 8,848.86 meters, making it the highest mountain above sea level on Earth.
- The mountain covers an area of approximately 100 square kilometers at its base in the Everest massif.
- Everest's summit is composed primarily of Ordovician limestone thrust over younger rocks during tectonic uplift.
- The Western Cwm, a hanging valley, is at 6,100 meters and stretches 3 kilometers long between Lhotse and Everest.
- Rongbuk Glacier on the north side is 15 kilometers long, one of the longest glaciers feeding Everest.
- Everest's average slope angle exceeds 40 degrees in the upper sections, contributing to avalanche risks.
- The mountain's volume is estimated at over 2.5 million cubic kilometers within the Himalayan range context.
- Everest lies 27 kilometers southeast of the Everest Base Camp (North) in Tibet at 5,150 meters.
- The summit ridge drops 30 meters to the south and rises 10 meters to the north from the true summit.
- Everest's latitude is 27°59′17″N and longitude 86°55′31″E.
- The Lhotse Face spans 1,125 meters vertically from 7,400 to 8,400 meters on the southeast route.
- Mount Everest has over 10 major glaciers radiating from its slopes, totaling more than 100 km in length combined.
- The Yellow Band, a limestone layer, is located between 7,200 and 7,500 meters elevation.
- Everest's Genevois Glacier on the north face is prone to massive ice avalanches.
- The mountain's tectonic uplift rate is about 4 mm per year due to the Indian-Eurasian plate collision.
- Everest's base diameter is approximately 30 kilometers in the broader massif area.
- The Pumori Glacier separates Everest from Pumori, flowing down to 4,500 meters.
- Mount Everest's summit temperature averages -19°C (-2°F) annually, with extremes to -36°C.
- The Central Rongbuk Glacier is 15.6 km long on the Tibet side.
- Everest's rock fall scars are evident from 8,000 meters upward due to erosion.
- The mountain's isolation distance is 3,682 km from K2, the next highest peak.
- Everest's Genevois ice cliff reaches heights of 100 meters near the north face base.
- The upper part of Everest above 8,000 meters contains 102 million cubic meters of ice and snow.
Physical Geography Interpretation
Weather and Climate
- Mount Everest's average summit wind speed reaches 100 km/h, with gusts up to 175 km/h.
- Annual precipitation on Everest is about 1,000 mm, mostly as snow above 5,000 meters.
- Jet stream winds over summit average 50-90 knots in May climbing season.
- Temperature at summit drops to -60°C (-76°F) in winter, with wind chill to -80°C.
- Khumbu Icefall experiences 1-2 meters daily movement due to melting.
- Monsoon season (June-September) brings 80% of annual snowfall, up to 3 meters depth.
- Visibility at summit can drop to zero in whiteout conditions within minutes.
- UV index at base camp exceeds 14, highest on Earth, causing rapid snow blindness.
- Relative humidity at 8,000m is less than 20%, exacerbating dehydration.
- Number of clear summit days per season: typically 10-15 in May.
- Barometric pressure at summit is 33.7 kPa, 1/3 of sea level.
- Ice melt rate on Everest glaciers: 36 meters water equivalent per year since 2009.
- Foehn winds from south can raise temperatures by 20°C in hours.
- Snow accumulation zone on Everest starts at 5,500 meters elevation.
- Winter low temperatures at South Col: -45°C with 120 km/h winds.
- Oxygen saturation at summit: 35% of sea level values.
- Cirrus clouds formation at 10,000 meters signals jet stream shifts.
- Annual temperature increase on Everest: 0.1°C per decade since 1970s.
- Blizzard frequency: 2-3 per week in pre-monsoon season.
- Dew point at base camp rarely above 0°C, indicating dry air.
- Permafrost thaw depth increased 20 cm since 2000 on lower slopes.
- May average summit temp: -19°C, but drops 10°C in shadow.
- Cloud cover peaks at 80% during afternoons in climbing season.
- Lightning strikes rare but recorded 5 times yearly near base camp.
- Glacier lake outburst floods (GLOFs) risk increased 30% due to warming.
- Wind chill factor at 50 km/h and -30°C equals -50°C effective.
- Post-monsoon climbing window has 20% higher wind speeds.
- Sea level pressure systems influence 70% of summit weather windows.
Weather and Climate Interpretation
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