A campsite or camping pitch is a place used for overnight stay in an outdoor area. In UK English, a campsite is an area, usually divided into a number of pitches, where people can camp overnight using tents or camper vans or caravans; this UK English use of the word is synonymous with the US English expression campground. In American English, the term campsite generally means an area where an individual, family, group, or military unit can pitch a tent or park a camper; a campground may contain many campsites. There are two types of campsites: an impromptu area (as one might decide to stop while backpacking or hiking) a designated area with improvements and various facilities (see below).