GRAZING RANGES IN SOUTHERN ARIZONA. 3 
fall collections of the same years. Figures without circles show the 
location of spring collections and those in circles show the locations 
at which fall collections were made during the years 1912 to 1914, 
inclusive. 
RELIEF MAP 
OF 
US 
RANGE RESERVE 
Fic, 1.—Relief map of the Santa Rita Range Reserve, Ariz., and some of the territory 
immediately surrounding it. 
The plant-distribution map (fig. 3) is designed to put on record 
an approximation to the present distribution of the principal groups 
er associations of forage plants upon the reserve. Its use will be 
appreciated in the future study of the reserve if different adjust- 
