Bennachie is not a particularly high mountain, but it is very prominent, owing to its isolation and the relative flatness of the surrounding terrain. It therefore dominates the skyline from several viewpoints, like this one.
The most prominent peak, Mither Tap (518 m, 1699 feet) provides good views of the county to the north and east. It is widely believed that Bennachie is the site of the Battle of Mons Graupius as described by the historian Tacitus, from which the Grampian area gets it's name.
Mither Tap means Mother Top and Bennachie or Beinn na Ciche in Gaelic means hill of the breast.