Phlegra Montes is a system of mountains in the Cebrenia quadrangle of Mars, located at 40.4 degrees north latitude and 163.71 degrees east longitude. It is 1,352.0 km across and was named after a classical albedo feature name. 
Material moving down slope in Phlegra Montes, as seen by HiRISE. Movement is probably aided by water/ice.
Lobate Debris Apron in Phlegra Montes, as seen by HiRISE. The debris apron is probably mostly ice with a thin covering of rock debris, so it could be a source of water for future Martian colonists. Scale bar is 500 meters long.
- Blue, Jennifer. "Phlegra Montes". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
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