GeoJSON

GeoJSON is a format for encoding a variety of geographic data structures.

{
  "type": "Feature",
  "geometry": {
    "type": "Point",
    "coordinates": [125.6, 10.1]
  },
  "properties": {
    "name": "Dinagat Islands"
  }
}

GeoJSON supports the following geometry types: Point, LineString, Polygon, MultiPoint, MultiLineString, and MultiPolygon. Lists of geometries are represented by a GeometryCollection. Geometries with additional properties are Feature objects. And lists of features are represented by a FeatureCollection.

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See the full specification for more detail.