Although the ramparts of this once mighty fortification have been reduced to tumbled stone, the remains of Mither Tap hillfort are hugely impressive. The barbican entrance is a rare survivor whilst the views from the summit are breathtaking.
Millstone hill is a Marilyn at 409m high. It can be approached from a small car park to the south, or from the Bennachie visitor centre, where the trails lead up its north slope.