Be aware that whatever the season, if you're at a high altitude, the weather can change quickly and dramatically. Temperatures The coldest month in Austria is usually January.
However, while many (but not all) canyons are found offshore from major rivers, subaerial river erosion cannot have been active to the water depths as great as 3000 meters where canyons have been mapped, as it is well established (by many lines of evidence) that sea levels did not fall to those depths.anyons cutting the continental slopes have been found at depths greater than 2 km below sea level. Many submarine canyons continue as submarine channels across continental rise areas and may extend seawards for hundreds of kilometres onto the abyssal plain.
At first, I am intending to make a post about the canyons around the world. However after my research, I decided to talk about only one canyon instead, which is claimed as the longest as well as the deepest canyon in the world (So I just called it the largest canyon in the world). It is âThe Yarlung Zangbo Grand Canyonâ from China. It is 496.3 kilometers long, 56.3 kilometers longer than the Colorado Grand Canyon, previously considered the worldâs longest. And it is 5,382 meters deep, much deeper than the 3,200 meters of Peruâs Colca Canyon, previously known as the worldâs deepest canyon. The canyon is in the lower reaches of the Yangtze River and around the highest peak of east Himalayas-Namjiagbarwa peak (7,787 meters above sea level), forming a huge horseshoe-shaped turn. 1  see the âhuge horseshoe-shaped turnâ. 2  This is a satellite photo for the canyon.