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Columbia Icefields and Bow Summit, Alberta



Icefield Glacia, Canada

The Columbia Icefield is a surviving remnant of the thick ice mass that once mantled in the
mountains of the Western Canada. Lying on a wide, elevated plateau, it is the largest ice field
in the Canadian Rockies. Nearly three-quarters of the park's highest peaks are located close
to the Icefield. It is ideally placed to catch much of the moisture that Pacific winds carry across
the British Columbia interior. Most of this precipitation falls as snow, up to 7m a year.
Since more snow falls in a year than can melt during the short summer season, it accumulates.
As time passes, the snow transforms into ice and begins to flow outward through gaps in the
mountains surrounding the Icefield, creating great tongues of ice called glaciers. The
Athabasca is the most-visited glacier on the North American continent. Situated across
from the Icefield Centre, its ice is in continuous motion, creeping forward at the rate of several
centimeters per day. Spilling from the Columbia Icefield over three giant bedrock steps, the
glacier flows down a valley, like a frozen, slow-moving river. Because of a warming climate,
the Athabasca Glacier has been receding or melting for the last 125 years. Losing half its volume
and retreating more than 1.5 kms, the shrinking glacier has left a moonscape of rocky moraines
in its wake.

Warning by Parks Canada:
The glacier is dangerous. People have been killed falling into deep, hidden cracks called crevasses in the glacier.
For your safety do not cross the barriers.


(L) Rocky mountains are covered in part with glacia. (R) A welcome sign plate to the Icefields by Parks Canada

(L) Athabasca Glacier on the Columbia Icefields (R) A 1970's snowmobile car at the Columbia Icefields

(L) Athabasca Glacier on the Columbia Icefields (R) A snowmobile ( snow-coach ) tour bus at the Columbia Icefields


Warning by Parks Canada:
If you are living with heart or lung ailments, over-exerting yourself at this altitude is dangerous. The elderly are especially at risk.

Big Bend on the Icefield Parkway, Alberta

A mountain lake along the Icefield Highway

Icefield Highway which was viewed from aircraft to Tokyo, This photo was taken in May 2008.



Bow Summit, Canada


Peyto Lake (pea-toe) is a glacier-fed lake located in Banff National Park in the Canadian Rockies.
The lake itself is easily accessed from the Icefields Parkway. The lake is formed in a valley of
the Waputik Range, between Caldron Peak, Peyto Peak and Mount Jimmy Simpson, at an elevation
of 1,860 m. During the summer, significant amounts of glacial rock flour flow into the lake, and
these suspended rock particles give the lake a bright, turquoise color. Because of its vivid color,
photos of the lake often appear in illustrated books, and area around the lake is a popular
sightseeing spot for tourists in the park. The lake is best seen from Bow Summit, the highest
point on the Icefield Parkway.



(L) A trail map of the Bow Summit (M) Information recorded is released by turning handle of the voice machine.
(R) Information guide about Peyto Galacier

Waputik Mountains and Peyto Lake, Banff National Park

(L) Waputik Mountains and Peyto Lake (R) A rock flour ( glacial flour ) is flowing into Peyto Lake.

(L) Waputik Mountains and Peyto Lake (R) Icefield Parkway runs heading to the Canadian Rocky mountains.


アイスフィールド・パークウエイの中間点にあるコロンビア大氷河は、北極圏を除き、北半球最大と言われている。
氷河から溶け出した水は北極海と太平洋に流れ着く。温暖化現象で毎年、少しずつ後退している。パークウエイから
見えるのは全長が6キロに及ぶアサバスカ氷河である。1974年の訪問時には雪上車に乗って深いクレパスが
刻み込まれた氷河の上を走行し、黒く汚れている雪面に降り立った。大氷河の入口には、当時なかった氷河への
危険性を知らせるボードが目についた。

ボウ・サミットはコバルトブルーのペイトー湖を見下ろす最高の展望台である。水面は氷河で砕かれた岩の粒が
溶け込み、空の色を反射して色が微妙に変化する。レイク・ルイーズと同じくその色合いは天候によって大きく
左右される。展望台にはハンドルを回して発電し、女性の声で案内を聞くことが出来る。おもしろい機器である。
ソーラーパネルを設置するよりも経済的かも知れない。



Canada
Smokefree British Columbia Smokefree Alberta  Trip to Canada 2011 Vancouver North Vancouver Whistler
Skytrain  VIA train Jasper Icefield and Bow Summit Emerald Lake Lake Louise Banff Calgary
Edmonton Hospitals in BC and Alberta Tobacco control in B.C. and Alberta 2011



アイスフィールドハイウェー

2011年7月撮影 2011年7月執筆

「禁煙席ネット」主宰 日本タバコフリー学会顧問 医学博士 宮本順伯
This Web site is link-free.

The article was written and photographs were taken by Dr. J. Miyamoto, in July 2011,
unless otherwise described.


Canada smoking ban
Emerald Lake, B.C., Canada



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