Mayang River
{{Infobox river
| country = {{flag|Indonesia}}
| state = East Java
| image =
| image_size = 300px
| image_caption =
| image_alt = Mayang river (Kali Mayang), Jember regency, East Java
| source1 = Mount Raung
| source1_location = Ledokombo
| source1_elevation = {{cvt|1500|m}}
| source1_coordinates = {{Coord|-8.12557 | 114.04667 |display=inline}}
| mouth = Indian Ocean
| mouth_location = Batuulo
| mouth_coordinates = {{Coord|-8.44 | 113.5896 |display=inline,title}}
| river_system = DAS Mayang
| basin_size_km2 = 1113
| extra =
{
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"properties": {
"marker-symbol": "m",
"marker-color": "0050d0",
"title": "Kali Mayang"
},
"geometry": {
"type": "Point",
"coordinates": [ 113.587561, -8.441767 ]
}
},
{
"type": "Feature",
"properties": {"marker-symbol":"s", "marker-color":"208020", "title":"Mount Raung"},
"geometry": {
"type": "Point",
"coordinates": [ 114.034996, -8.1267 ]
}
}
]
}
}}
{{Short description|River of Java, Indonesia}}
Mayang River or Kali Mayang is a river located in the south of East Java and flows into the Indian Ocean at a cape in Watuulo, Jember Regency, in the southern coastal area of Java.{{Cite web |title=Peta Interaktif |url=http://webgis.menlhk.go.id/ |access-date=2023-10-25 |website=WebGIS MenLHK |language=id}}{{Cite web |title=Kali Mayang |url=https://www.geonames.org/1635775/kali-mayang.html |access-date=2023-10-26 |website=geonames.org}} The river originates in the southwest of Mount Raung. It has a length of approximately {{cvt|146|km}}{{Cite thesis |title=Penentuan Daya Tampung Sungai Mayang terhadap Beban Pencemaran menggunakan Persamaan Streeter-Phelps |url=https://repository.unej.ac.id/xmlui/handle/123456789/103406 |publisher=Fakultas Teknologi Pertanian Universitas |date=2019-04-30 |degree=Thesis |first=Adityarini |last=Aprilianti}} and a watershed area covering {{cvt|1113|km2}}.{{Cite web |last=Hukum Online |first= |title=Keputusan Menteri Kehutanan No. SK.511/MENHUT-V/2011 |url=https://www.hukumonline.com/pusatdata/detail/v2/lt4f2f760d2fff3/keputusan-menteri-kehutanan-nomor-sk511menhutv2011-tahun-2011 |language=id}}