A footpath (also pedestrian way, walking trail, nature trail) is a type of thoroughfare that is intended for use only by pedestrians and not other forms of traffic such as motorized vehicles, bicycles and horses. They can be found in a wide variety of places, from the centre of cities, to farmland, to mountain ridges. Urban footpaths are usually paved, may have steps, and can be called alleys, lanes, steps, etc. National parks, nature preserves, conservation areas and other protected wilderness areas may have footpaths (trails) that are restricted to pedestrians. The term footpath can also describe a pavement/sidewalk in some English-speaking countries (such as Australia, New Zealand, and Ireland). A footpath can also take the form of a footbridge, linking two places across a river.