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Public-images-osm logo.svg water = moat
Caerlaverock Castle from the air.jpg
A deep, wide defensive ditch, normally filled with water, dug to surround a fortified habitation. Edit or translate this description.
Group: Water
Used on these elements
should not be used on nodesshould not be used on waysmay be used on areasshould not be used on relations
Useful combination
See also
Status: in use

A  moat is a deep, wide defensive ditch, normally filled with water, dug to surround a fortified habitation.

How to Map

Draw the moat area outline. If there is an island which is completely surrounded by the moat, you may need to create a multipolygon relation.

Add natural=water and water=moat.

If there is a dam, waterway=dam is used to map it separately.

Tags used in combination

  • name=* - if the moat has a commonly used name
  • intermittent=yes - if the moat is intermittently filled with water

See also

  • defensive_works=moat - for (dry) defensive moats
  • natural=water + water=reservoir - A reservoir or an artificial lake that is used to store water. Usually formed by a dam over a natural water course, water then backs up into a natural valley or depression.
  • landuse=basin or water=basin - an area of land artificially graded to hold water.
  • water=lake - for a natural or semi-natural lake
  • water=reflecting_pool - A reflecting pool: a water feature found in gardens, parks, and at memorial sites. It usually consists of a shallow pool of water, undisturbed by fountain jets, for a calm reflective surface.
  • water=canal - the water area of a canal, a man-made channel for water. Contains a waterway=canal way inside.
  • water=ditch - the water area of a ditch, a simple narrow artificial waterway, used to drain nearby land. Contains a waterway=ditch way inside.
  • water=drain - the water area of a drain, an artificial waterway used for carrying superfluous water, lined with concrete or similar. Contains a waterway=drain way inside.
  • castle_type=* - for different types of castles which may be (partially) surrounded by a moat.