U. S. GEOLOGICAL SURVEY BULLETIN 845 PLATE 18 
A. SMELTER AT EL PASO, TEX. 
amounts of gold, silver, copper, and other ores oe in the Southwest. The 
mountains in the background are in Mex 
Receives large 
B. KILBOURNE HOLE, A GREAT CRATER IN T 
MEXICO WEST OF EL PASO, TEX 
Believed to be a result of steam explosion. 
HE TERRACE PLAIN IN NEW 
Looking south. There is a ranch near center of hole. 
