About 5,000 years ago the sea levels were low enough that they could walk to the limestone outcrops.

The area is known for its limestone outcrops and caves.

The 'Rock' is a prominent green hill, banded with limestone outcrops.

Evidently they had no idea who lay behind that limestone outcrop.

The finds were made on a 30 meter long slope below two limestone outcrops.

The area around the hill comprised limestone outcrops and low scrub.

Perched on a limestone outcrop, it shows its origins as a 12th-century fortress.

Development was slow, due partly to the thick virgin bush and limestone outcrops, which made building difficult.

A plan dating from 1752 shows that the castle was entirely constructed on the limestone outcrop.

They live in the forests and limestone outcrops of Laos.