The glaciers and perpetual snows of the mountain peaks feed the river year-round.

The perpetual snow and ice storms make an area three hundred thousand square kilometers impenetrable.

We were led upward for many miles until we found ourselves again in the region of perpetual snow.

Narnia is a land covered in perpetual snow and ruled by the White Witch.

"It is a very hard place to reach because there are perpetual snows," he said.

None of the summits reaches the region of perpetual snow.

There are not perpetual snow and wolves at all in it!

The alpine line of perpetual snow is not fixed.

Still, the "line of perpetual snow" is not fixed.

How could it grow in perpetual snow, otherwise?