Sabalan ridge of Sabalan. Sabalan Sabalan (Persian: سبلان ), or Savalan (Azerbaijani: Savalan, ساوالان ) is an inactive stratovolcano in the Alborz mountain range and Ardabil Province of northwestern Iran. At in elevation, it is the third highest mountain in Iran. It has a permanent crater lake formed at its summit. On one of its slopes around in elevation there are large rock formations of eroded volcanic outcrops which resemble animals, birds, and insects. Located in the extreme northwest of Iran, Sabalan is the country's third highest peak after Damavand and Alam-Kuh. It is also higher than Mont Blanc in the
Mount Rainier Volcano Lahar Warning System Mount Rainier Volcano Lahar Warning System The Mount Rainier Volcano Lahar Warning System consists of two separate components, operating in tandem: Acoustic Flow Monitors (AFM) and the All Hazard Alert Broadcast (AHAB) sirens. The AFM system was developed by the United States Geological Survey (USGS) in 1998 and is now maintained by Pierce County Emergency Management and the sirens are maintained by Pierce County Emergency Management. The purpose of the warning system is to assist in the evacuation of residents in the river valleys around Mount Rainier, a volcano in Washington, in the event of a lahar. Pierce County works