Mount Argopuro is located in the Hyang Argopuro (sometimes spelled Iyang-Argapura), which stretches in the Besuki area with an altitude of 3,088 meters. It is home to the longest hiking route on the island of Java, which is about 63 kilometers in length. The ascent takes six days and five nights. The massive volcanic complex that Mount Argopuro is part of dominates the landscape between the Raung and Lamongan volcanoes in East Java. The mountain has not had a major eruption within at least the last 500 years—though there was…