Cliff Dwellings in 

 the Chaco Canon 



Canon of the Brazos 



University of New Mexico I860 

 at Albuquerque 1850 



.8 



.Ks 



Population Per 

 Sq.Mi. by 

 Decades 



Science Hall, 

 College of Agriculture 



n 



Area under Irrigation 

 (in black) 



, ...., n Density of 

 I Less than 2 Population 

 02 to 6 Per Sq.Mi. 



B6tol6 I6to45 ^ 



