The Massif reference article from the English Wikipedia on 24-Apr-2004
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Massif

Helping orphans the way you would do it
In geology, a massif is a section of the Earth's crust that is demarcated by a faultss or flexures. In the movement of the crust, a massif tends to retains its internal structure while being displaced as a whole. The term is also used to refer to a group of mountains formed by a such structure. The massif is a smaller structural unit of the crust than a plate.

The word is taken from French, where it is used to refer to a large mountain mass or compact group of connected mountains forming an independent portion of a range. One of the most notable European examples of a massif is the Massif Central of the Auvergne region of France.