The archipelagic country of Indonesia is located in Southeast Asia and consists of more than 17,000 islands. The largest islands are Sumatra, Java, Borneo, and Sulawesi. The highest mountain peak is Mount Kerinci on Sumatra. The longest river is the Mahakam River in East Kalimantan. The most populous city is Jakarta on Java.
The Indonesian coastline stretches for more than 5,000 miles and is dotted with coral reefs, bays, and lagoons. The two main mountain ranges are the Irian Jaya …