Tag:water=lake

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Public-images-osm logo.svg water = lake
Blowdown Lake.JPG
Description
A body of relatively still fresh or salt water which is surrounded by land Edit this description in the wiki page. Edit this description in the data item.
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
Requires
Useful combination
See also
Wikidata
Status: approvedPage for proposal

Lake: a body of relatively still fresh or salt water, localized in a basin that is surrounded by land. Artificially created lakes should instead be tagged as water=pond or water=reservoir. Intermittent lakes (which disappear seasonally) should be tagged with intermittent=yes; salt lakes — with salt=yes. Also see water=lagoon for salt water bodies next to the sea and water=oxbow for lakes formed by the meanders of a river.

Example

For Lake Baikal area tags would be as follows:

natural=water
water=lake
name=Baikal

Islands

Lakes with one or more islands in them should me mapped as multipolygons.

First, map the island(s).

  • for each island, draw the outline area of the island by tracing its shoreline
  • add place=island or if it is very small place=islet
  • optional landuse=* can be added. For example, if the island is wooded, add landuse=forest or natural=wood.
  • if the island has a name=* of its own, add it here too

Next, map the lake outline.

  • draw a closed way area following the lake's shoreline
  • do not add any tags to this way – the lake's tags will instead be put on the parent relation

Finally, create a type=multipolygon relation.

  • tag the relation as natural=water and water=lake. Other tags describing the lake (e.g. name=*, intermittent=*, etc.) should also go on the relation.
  • add the lake outline as a member with role outer
  • add the island(s) as members with role inner

See also