what is a fault mountain?

Answer 1

"Fault-block mountains are produced when normal (near vertical) faults fracture a section of continental crust. Vertical motion of the resulting blocks, sometimes accompanied by tilting, can then lead to high escarpments. These mountains are basically formed by the earth's crust being stretched and extended. Tilted blocks are common in the Basin and Range region of the western United States. Level blocks lead to the horst and graben terrain seen in northern Europe. Fault block mountains commonly accompany rifting and are indicators of tensional tectonic forces."

Answer 2

USUALLY IT IS A PRODUCT OF EARTH QUAKES, I WAS IN GAVIODAPASS IN 1952 AND THE CALIFORNIA EARTH QUAKE DID ALLOT OF DAMAGE TO THE AREA, TORE THE CHIMNEY OFF OUR HOME IN SANTA MARIA. FAULT IS WHERE THE MOUNTAIN SLIDES APART DURING AN EARTH QUAKE, FAULT ARE ON THE MANTEL PLATES IN THE EARTH FIGHTING FOR CONTRACTIONS & EXPANSIONS