The Indonesian archipelago has 147 volcanoes that are a part of the infamous Pacific Ring of Fire, the 40,000km horseshoe-shaped seismic area that is home to 75% of the world's dormant and active volcanoes.  The island of Bali is itself, primarily volcanic with 1 million year old volcanic remains making up its western peaks and younger basaltic strato volcanoes dominating the east.  This volcanic chain is an extension of Java's central range and divides Bali geographically in half. These peaks are considered sacred by the Balinese as they create the islandâ??s landforms, revitalize the soil, help produce the rainfall that sustains the agriculture and provide abodes for the gods.  It is said that Shiva divided Mahameru, the sacred Hindu mountain, and placed the two halves on Bali to symbolize female and male elements, as represented by Gunung Batur and Gunung Agung.  Here is a list of Bali's most prominent peaks in descending order of height