Spectacular deep canyons and rugged red limestone gorges dramatically cut into the range, flowing with deep blue water that mirrors the cliffs when calm.

Other limestone gorges may be valleys which were cut very deep by old rivers but whose sides have remained almost vertical.

The route passes through a variety of landscapes including tidal marsh, open moorland and limestone gorges.

It consists of a limestone gorge, the original early workings before they went underground to follow the veins of ore.

Narrow limestone gorge contains series of prehistoric caves occupied by men and animals some 70,000 years ago.

Stop off to look down into the sheer limestone gorge at the roiling waters, sudden cascades, and tranquil pools.

Burgess Falls spills into a large limestone gorge enclosed by sheer 100-200 foot walls.

The river's limestone gorges are due to its recent formation.

Only Southey's description survives to give some impression of the effect produced by the towering limestone gorge on two minds eager to be astonished:

There is a series of four waterfalls close to Keld at a limestone gorge on the River Swale.