Perhaps it is to be expected in the country that invented high-altitude rail travel.
Kenneth Baillie, an expert in high-altitude physiology in Edinburgh, Scotland, who co-founded the website altitude.org.
Aspen, Colorado, for example, is one of the trickiest high-altitude airports in the country.
Bolivia has been called the Tibet of South America for its high-altitude terrain.
The original Mercury spacesuits were a modified version of pressure suits that pilots wore in high-altitude jet aircraft.
Images of the three planets at HR 8799, however, were captured directly using two high-altitude telescopes in Hawaii.
Ever since Humboldt's visit, Ecuador has become a popular destination for high-altitude mountaineering.
Today frostbite is much more common because so many Everest mountaineers just don't have Mallory and Irvine's high-altitude experience.
Scientists studied the effects of an electromagnetic pulse from a high-altitude nuclear blast in depth during the Cold War.
One reached an altitude of 25 miles (40km) attached to a high-altitude balloon.
Not everyone agrees about the effects of a high-altitude EMP for civil infrastructure.
Thanks to London's rising skyline, high-altitude dining is the city's latest trend.
The BAMS-D program has been developing tactics and doctrine for the employment of high-altitude unmanned patrol aircraft since November 2006.
Flight 447 crashed into the Atlantic north-east of Brazil on 1 June 2009, after running into an intense high-altitude thunderstorm.
BBC: Air France crash: Tail section found on Atlantic seabed
Asthma inhalers like albuterol, which work by stimulating beta-receptor cells in the lungs, were first used to treat high-altitude climbers.
WSJ: Mayo Clinic Researchers on Everest Study High Altitude's Effects on the Body
And researchers from the University of Colorado, Denver, are planning a high-altitude research trip to Bolivia with 24 study participants.
WSJ: Mayo Clinic Researchers on Everest Study High Altitude's Effects on the Body
The low-risk, high-altitude bombing cannot grow markedly more effective unless the allies are willing to accept more casualties--theirs and ours.
Despite relentless air strikes, they continue to occupy high-altitude strategic points in the snow-packed mountains of Kargil and adjoining areas.
Suraj flashed a cheeky grin through his beetelnut-stained lips, leaving us intrigued by how many more wonders this high-altitude desert could possibly hide.
The United States has several simulators that could be modified to emulate the EMP effect of a high-altitude nuclear blast.
Further piquing the imagination are the minority tribes who live among the high-altitude valleys, struggling to maintain their ethnically independent identities.
While it may vie for the most dramatic, this high-altitude hot spot is now one of many built in major metropolises.
The most promising initiatives near term, he thinks, include solar thermal, high-altitude wind power and deep drilling to tap geothermal power.
As someone who has done high-altitude trekking, including to the Everest base camp and Mount McKinley in Alaska, Babar is used to careful bets.
But high-altitude carbon emissions are reckoned to be more damaging than low-level ones, although nobody is sure by exactly how much.
With accommodation in huts along the way, the hike runs through the moist, high-altitude forests covering the Outeniqua Mountains above Knysna, finishing in Harkerville Forest.
Such high-altitude conquest, India thinks, required help from the Pakistan army, in the form of radar, mortars and snowmobiles, among other things.
But high-altitude wind currents forced their craft onto a more southerly course.
Range and climb performance improvements, especially out of high-altitude airports, is outstanding.
The High-Altitude Water Cherenkov Observatory or Hawc, high on a Mexican plain, now holds the record for the highest-energy light it can capture.
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