Mountains

The Island
Crystal peak, due to its supply of crystal accessible early game. It is the mountain to the right of weathertop
 * Far's Peak
 * The Frozen Tooth
 * The Grand Hills
 * The Red Peak
 * Volcano
 * Weathertop
 * Whitesky Peak
 * Winter's Mouth
 * what I like to call morning

The Center

 * Snowy Mountain (North) (The Center)
 * Snowy Mountain (South) (The Center)

Scorched Earth

 * Mountains (Scorched Earth)

Ragnarok

 * Blizzard Peak (Ragnarok)
 * Murdersnow (Ragnarok)

Montagnes