Plate 8 



W. T. Miller, photo 

 Crane mountain as viewed from Thurman village. This great dome of 

 quartz-syenite rises 2000 feet above the valley at its base. The valley is 

 underlain with Grenville, chiefly limestone. The steep slope on the left 

 (south) side is due to a fault scarp, and the down tilt of the great moun- 

 tain block toward the right (north) is plainly shown. The escarpment at 

 the summit is due to the passage of a minor fault. 



