Editing East Java (section)

=== Geology ===
In physiographic of geology, East Java Province can be grouped into three zones: the southern zone (plato), the middle zone (volcanic), and the northern zone (folds). Lowlands and highlands in the middle (of Ngawi, Blitar, Malang, to Bondowoso) has a fairly fertile soil. In the northern part ( Bojonegoro, Tuban, Gresik, to Madura Island) lies the Kapur Utara mountains and the Kendeng mountains which are relatively barren.

In the middle of the province stretch mountain ranges and volcanoes: On the border with Central Java is [[Mount Lawu]] (3,265 metres). Southeast from Madiun is [[Mount Wilis]] (2,169 metres), and Mount Liman (2,563 metres). In the middle of the corridor lies the Anjasmoro mountains with peaks [[Arjuno-Welirang|Mount Arjuno]] (3,339 metres), Mount Welirang (3,156 metres), Mount Anjasmoro (2,277 metres), Mount Kawi (2,551 metres), and [[Mount Kelud]] (1,731 metres); The mountains are located in most Kediri, Blitar, Malang, Pasuruan, Mojokerto and Jombang. The group has the peak of Mount Bromo Tengger (2,329 metres), and Mount Semeru (3,676 metres). [[Mount Semeru]], which is also called Mahameru is the highest mountain in the island of Java. In the easternmost part if the province, there are two groups of mountains: the Iyang mountains with the peak Mount Argopuro (3,088 metres), the Ijen mountains with the peak [[Mount Raung]] (3344 metres) In the south there is a series of hills, that of the south coast of Pacitan, Trenggalek, Tulungagung, Blitar, Malang. the Kapur Selatan mountains is a continuation of a series of the Sewu mountains in Yogyakarta.