Thickest crust
Who
Unknown
What
40-75 kilometre(s)
Where
Not Applicable ()

The Earth's crust is the cold, solid, outermost layer of its lithosphere, which sits above the hot convecting asthenosphere. It is divided up into plates and consists of two types: the dense ocean crust and the lighter continental crust. The Himalaya mountains in China is where the Earth's crust is thickest, at around 75 km (46 miles).