Now they were running along the channel between the ridges of rocks.

The channel between the two ridges of rock was narrow there.

Pooled on the ground and ran away between the ridges in the concrete.

For this reduction to be valid, we must have small distances, between the ridges.

To the north, between the two descending ridges, is an area of crag.

The height and the spacing between the ridges are directly related.

They want to get in position between the ridges and our lines, set up their missiles and attack.

The tail section fell into a crevasse between the two ridges.

They came down into a cut between ridges which ran as straight as if it marked an old road.

The one good road between the ridges had but occasional connections with the outer highways.