http://news.bbc.co.uk/1/hi/world/south_asia/2938596.stm

Edmund Hillary says there are mountains more difficult than Everest,
which are yet to be climbed.

Which ones?

I don't think he had any specifically in mind but was perhaps speaking
more about possibilities.

However, K2 has ofeten been described as being harder to climb than Everest.

You can read about it here: http://www.jerberyd.com/climbing/stories/k2/

"K2 is the second highest mountain on Earth, but it's also the most
beautiful, most dangerous and, along with Gasherbrum IV and Cerro
Torre, most technically difficult - far, far more than Everest."

http://www.geocities.com/Tokyo/4749/rtbtgs.txt

According to the following articles Kangchenjunga  and Hkakabo Razi
are more diffucult to climb that Everest.


?Kangchenjunga is the third highest mountain in the world. Although it
is only 270 metres lower than Everest it is a much harder mountain to
climb. It lies at the eastern extreme of the Himalayan range, on the
border between India and Nepal.?

?Kangchenjunga lies at the eastern extreme of the Himalaya it is
exposed to very bad weather conditions, in particular winds of 300 mph
or more. It is also a technically difficult mountain to climb, much
harder than Everest, which is only 250m higher, and possibly as hard
as K2 which is only 12m higher. There are no easy routes up
Kangchenjunga; all faces have serious avalanche and rockfall dangers
and very difficult terrain.?
http://www.bluedome.co.uk/Challenge8000/kanchenjunga1.html

Hkakabo Razi

?O'Neill will climb and ski Myanmar's 19,296-foot Hkakabo Razi, near
the China-India border, in fall 2004. "It's only been climbed once, by
a Japanese mountaineer who said it was harder than Everest," says
O'Neill. "Who knows if we can ski it, but we might as well try." ?
http://outside.away.com/outside/features/200312/200312_xx_4.html

" . . . The world's full of climbers, and the realm of unexplored,
unclimbed peaks is shrinking rapidly." In other words, he who blurts
out his dream ascent is only inviting the world to spoil the party.
It's no secret, however, that Lowe's attention for the past two years
has been drawn to the Antarctic. The trip to Queen Maud Land in the
winter of 1996-97 opened his eyes to the possibilities: an entire
continent of mostly unclimbed - even unseen and unmapped - mountains.
The main focus of his obsession is the Transantarctic Range, a spine
of mountains as long as the Rockies that runs up the opposite side of
the continent - a forbidding and insanely cold setting for the last
big collection of first ascents on the planet."
http://outside.away.com/magazine/0399/9903climber.html

"Now *there's* an extreme sport -- first time climbing an Antarctic
peak. There must be lots and lots of peaks of all sizes in the
Transantarctic Range that haven't yet been climbed."
http://www.dregston.com/dc/dcboard.php?az=show_mesg&forum=120&topic_id=3246&mesg_id=3293&page=

A lot can be judged by the technical scale of the climb. As I know,
along with K2, Gasherbrum IV in Pakistan, there are the great Trango
Towers and the Latok Mountains that are considered to be the ultimate
climb. Henry might be speaking of such mountains ( a few of them in
Pakistan ) that are still off limits to the climbing community due to
tensions between India and Pakistan. Lots of mountains in Pakistan
have seen very few successful accents. Here is a brief preview:
http://www.aminwebsite.com/Members/Pakistan.html