Natural geographic feature - an ecosystem or natural landform.

There are many other natural landforms such as beaches and waterfalls.

The water problem was traditionally solved by constructing talaos with careful regard to natural landform.

Arroyos can be natural fluvial landforms or constructed flood control channels.

Geologists generally define a mountain as a natural landform topping at least 1,000 feet in elevation.

Unlike natural landforms, a Pinge is a direct result of human activity.

Thanks to the natural landform, Rio Tinto, is an important fishing center in the state, exporting all its production surplus to neighboring municipalities.

Many of the natural landforms and just about all the distances are still correct.

The natural landform is undulating fertile plains, which often feature limestone and dunes.

Earth sheltering and positioning buildings to take advantage of natural landforms as windbreaks.