icks, axes, sledges and hammerstones used were of forms familiar 
all our aborigines. | ese \ 
The nearest evidence of work so far as observed is at the 
pase of the lower bluff on the north side of the valley two miles 
one 
east of the ruins. From this point transportation Was comparative- 
oly easy as the way was dowr very gentle slopes cut by occasional 
rroyos and smaller gulleys which could be without great 
ifficulty. But the main quarries are found on the upper slopes of 
the range to the north nearly a thousand feet above the City and 
‘five or six miles away. The feats of engineering necessary to 
transport masses of stone many tons in weight down a thousand feet 
of precipitous mountain face, 
,accompli shed by these stone age quar- 
‘Fymen,would be regarded as important undertakings even by our enter. 
rising anetneshe of today. Their means and appliances were no 
oubt extremely simple and great time must have been comsumed in 
the work. Sebine the vast results accomplished we are compell ed 
Oo assume the employment of large numbers of men directed by a des- 
ic power not limited to the life of an individual but continued 
