On each side are the fantastic limestone hills, formed of rock so soft that you can break it away with your hands.
The site is marked by an 18 km diameter ring of limestone hills.
One can find Sand dunes all over the area with a couple of small limestone hills.
There are many limestone hills in the area, and several caves containing bats.
Group 28 is situated upon a limestone hill in the southwestern portion of the site.
Later that century, the village was described as being built of stone, on top of a limestone hill.
It is situated in an area with many limestone hills, rivers and caves.
The municipality is located on a former lake surrounded by red limestone hills.
The north of the department is composed by limestone hills.
The afternoon sun slanted across an entrance porch set into the face of a limestone hill.
