New Trails in Mexico —— An Account of One Year's Exploration in North-Western Sonora, Mexico, and South-Western Arizona, 1909-1910

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ISBN: 9781330244111 出版年：2016 页码：560 Carl Lumholtz Forgotten Books

The mineral prospects of the region, especially as regards gold, are great. There are numerous large veins south of Sonoita which should be examined and the moun tains of the western desert explored. Free gold which undoubtedly has been encountered in the malpais in the northern part of Pinacate should also be followed up.