• Type: Mountain Range (featuring an active volcano)
• Location: Southern border of the Ralar Region, adjacent to Ralar Bay and the Dark Sea

The Ralar Mountains stretch roughly 200 kilometers from west to east, forming a volcanic mountain range that encircles the namegiving and highly active Ralar Volcano. Serving as the southern boundary of the Ralar Region, they rise alongside the geothermally active coastline of Ralar Bay.

The centerpiece of the range is Ralar Volcano — one of the highest elevations on the Dark Side of VOI 700 D. With an altitude of 4,800 meters and a sprawling footprint of 2,500 square kilometers, the volcano is both a geological marvel and an ecological driver, shaping the surrounding terrain through frequent eruptions and continuous geothermal activity.

The Ralar Mountains are characterized by steep, ash-covered flanks, jagged lava ridges, and expansive flows of solidified magma. The main crater of Ralar Volcano measures two kilometers in diameter and is surrounded by several smaller secondary craters formed by historic eruptions.

The geothermal influence makes the Ralar Mountains one of the warmest places on the Dark Side. Frequent lava flows and sulfur venting contribute to the development of extremophile ecosystems along the slopes and into the Ralar Bay. The terrain is volatile, with rockfalls, ash storms, and seismic tremors being common.

• Volcanically warmed microclimates around geothermal sites
• Periodic ash storms and toxic gas emissions
• High seismic activity and occasional lava flows
• Nighttime fog and vapor clouds along the Ralar Bay shoreline