Mount Semeru or Sumeru is the highest volcano in Java, with Mahameru peak, 3676 meters above sea level (masl). The crater at the summit of Mount Semeru known Jonggring Saloko.
Semeru has Dipterokarp forest hill, forest Dipterokarp Upper Montane forest, and forest or mountain forest Ericaceous.
The position is situated between the mountain region and Lumajang Malang regency administration, with its geographical position between 8 ° 06 'latitude and 120 ° 55' East Longitude.
In 1913 and 1946 Crater Jonggring Saloka has a dome with a height of 3744.8 M until the end of November 1973. To the south, the dome is breaking edge of the crater caused lava flow leads to the south and covers an area Pronojiwo Candipuro in Lumajang.
