GEOGRAPHY, TOPOGRAPHY, AND GENERAL GEOLOGY. 
15 
The location of the Iron Springs district affords unusual oppor- 
tunities for the study of Basin Range structure, the relation of the 
Basin Ranges to the High Plateaus, and the associated problems. 
From a scenic standpoint also the district is .difficult to surpass, 
affording a view of the massive Pine Valley Mountains, the desert 
GREAT SALT LAKE 
FIG 
1.— Sketch map of parts of Utah, Arizona, and Nevada, showing geographic relation of Iron 
Springs district to physiographic regions. 
in its typical development, and the still more striking, brilliant- 
colored escarpments of the High Plateaus, notched immediately 
opposite the Iron Springs district by Cedar Canyon (Coal Creek 
Valley), which rivals in form and beauty of coloring the canyon of 
the Virgin, 50 miles to the south, and even the Grand Canyon, 100 
miles to the south. 
