Beyond the Stepping Mountains, and the peak of the Silver Mountain, lay the Cliffs of Dover. A plateau once existed here, created by the Twilight warlord Dover. Wether it was a fit of enraged madness or an experiment gone wrong, or retaliation during the Usurpation, is unclear, but the Edgecrusher Piston that was to be part of a new war engine overheated and blew the entire area away.