U. S. GEOLOGICAL SURVEY BULLETIN 845 PLATE 33 
A. THE “EXPLORER” 
A drawing of the st boat d by the Ives expedition up the Colorado River. 
B. VIEW NORTHW a ACROSS THE GILA RIV = FROM ANTELOPE HILL, 
VEEN WELLTON AND ROL IZ. 
Castle Dome Mountains in distance; irrigated fields i in middle ground. 
