Mountain planet (S-class V, symbol Mt) is a surface class of planet with mountain ranges covering much of the surface.
Habitability and characteristics
The Template:Wpd-bearing status on mountain planets are fair. Some habitable mountain planets feature water found in river valleys, as well as in lakes and seas.
Abundance
There are an estimated 23 billion mountain planets in Template:Wpd alone, making it the third least abundant surfacel class of planet, after forest planet and city planet. This corresponds that 44‰ of all 524 billion terrestrial planets and 28‰ of all 820 billion planets in our galaxy are mountain planets.
Probable mountain planets
There are no mountain planets in our solar system, but there are five probable mountain exoplanets as of February 2014, including a pulsar planet and four planets detected by Template:Wpd.
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