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CAVE AND CLIFF DWELLERS . 
profitable as their mineral wealth, and 
this is saying a great deal, for these 
States comprise the richest silver district 
in the world. 
That evening we camped in the valley 
of the Guigochic, on another beautiful 
mountain stream, where a little park of 
an acre or two gave our mules some 
sweet alpine grasses, which warranted us 
in believing that half the morning would 
not be passed in chasing over the hills to 
find stray mules, as is so often the case in 
Mexico when these beasts are turned loose 
to search for their food. We were all 
thoroughly tired with our first day’s ride 
on mule-back, but nevertheless turned in 
to help the cook, as we realized that we 
wanted something to eat that night. The 
tent was pitched between two magnificent 
pines of enormous size, and I slept to the 
