kalimantan sample region

map.geojson

{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Polygon",
        "coordinates": [
          [
            [
              109.53369140625,
              2.04302395742204
            ],
            [
              109.48974609375,
              1.6806671337507222
            ],
            [
              109.69848632812499,
              1.4280747713669428
            ],
            [
              110.36865234374999,
              0.8788717828324276
            ],
            [
              110.67626953125,
              0.8019757647536726
            ],
            [
              111.005859375,
              0.9557662177941483
            ],
            [
              111.20361328125,
              1.0106897682409128
            ],
            [
              113.961181640625,
              -0.8678867310885294
            ],
            [
              113.22509765625,
              -3.480523430587774
            ],
            [
              109.852294921875,
              -3.7217452310689536
            ],
            [
              107.90771484375,
              -0.45043481325254864
            ],
            [
              108.511962890625,
              1.537901237431487
            ],
            [
              109.53369140625,
              2.04302395742204
            ]
          ]
        ]
      }
    }
  ]
}