Semeru has Hill Dipterokarp forest area, forest Dipterokarp Top, Montane forest, and forest Ericaceous or mountain forest.
The position of this mountain is located between the administrative area Malang and Lumajang, with geographical position between 8 ° 06 'latitude and 120 ° 55' east longitude.
In 1913 and 1946 the crater Jonggring Saloka have dome with a height of 3744.8 m to the end of November 1973 To the south, the dome is to break the edge of the crater caused lava flow leads to the south side and covers an area Pronojiwo Candipuro in Lumajang.