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Aside from the intriguing Google Map result,
http://maps.google.com/maps?ie=UTF-8...l=en&q=&tab=wl (insert: "China Camp" "Cochise County" AZ USA )
I know of one person, who lives west of the Dragoon Mts., near Wilcox, AZ, Kansas Settlement area, that might be.
I can give you her contact info, if you would like? She is very well informed of the early history of that very region, having explored most of those mountains aboard, "the horse, that the Conquistadors road in on".
(Like myself, she's a real stickler, for authentic, period transportation.)
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