The valleys between the rises grew wider; the slopes, less rugged.

Travel has been easier than in the upper course valleys and so a few villages have grown to become market towns.

Here he had come so far, but the valley had grown too small for him, too confined.

The valley grew during and following the ice age.

The valley grew steeper, and he came to a little cataract.

Without the large amount of water that is received by the bigger valleys, these valleys grow far more slowly.

And this warm valley would grow a good crop, if properly tended.

The valley grew narrow; the mountains rose steep on either side.

And as he walked and sang the valley grew green with grass.

But don't be too sure about quakes; valleys below sea level don't just grow - something has to cause them.