A GeoJSON MultiPolygon Example

multipolygon.geojson

{
  "type": "Feature",
  "properties": {},
  "geometry": {
    "type": "MultiPolygon",
    "coordinates": [
      [
        [
          [
            0,
            0
          ],
          [
            30,
            0
          ],
          [
            30,
            30
          ],
          [
            0,
            30
          ],
          [
            0,
            0
          ]
        ]
      ],
      [
        [
          [
            60,
            60
          ],
          [
            90,
            60
          ],
          [
            90,
            90
          ],
          [
            60,
            90
          ],
          [
            60,
            60
          ]
        ]
      ]
    ]}
  }