The Sleeping Giant is a formation of mesas and sills on Sibley Peninsula which resembles a giant lying on its back when viewed from the west to north-northwest section of Thunder Bay, Ontario, Canada. As one moves southward along the shoreline toward Squaw Bay the Sleeping Giant starts to separate into its various sections. Most distinctly in the view from the cliffs at Squaw Bay the Giant appears to have an "Adam's Apple". The formation is part of Sleeping Giant Provincial Park. Its dramatic steep cliffs are among the highest in Ontario (250 m).