He's a dreamy kid, an only child, who in 2000 escaped from North Korea along its heavily patrolled northern border, one hemmed by two rivers and impassable mountains.

I don't want my army separated from me by several hundred miles of impassable mountains.

Let's see, we can have two new states divided neatly down the middle by a range of tall impassable mountains.

As Ban Matej didn't have the strength to oppose, he retreated to the impassable mountains and primeval forests.

He was alone in a damaged lifeboat on an impassable mountain with one or more of the most remorseless creatures ever spawned.

Most of it was empty, but it certainly did a better job of keeping the immersion than a land ringed with impassable mountains.

Hunger, disease, danger, freezing cold, impassable mountains, rivers and deserts, a mighty enemy army - nothing could halt them.

The impassable mountains called the Dandha Presh only get shorter out there before they finally wade into the ocean.

His silence shouted of impassable mountains.

To the north and west, impassable mountains.