Beyond the West: containing an account of two years' travel in the other half of our great continent far beyond the old West, on the plains, in the Rocky mountains, and picturesque parks of Colorado. Also, characteristic features of New Mexico, Arizona, Wyoming, Montana, Idaho ... Oregon, Utah, Nevada, and ... California, the end of the West ... the great continental railroad, together with the ... most wonderful natural scenery in the world .../ by George W. Pine.

ARIZONA. 153
rers aind pr(specters from California and Sonora.
The subsequent discovery of multitudinous silver
and copper mines upon and adjacent to the river, in
what are now known as the Yuma, Castle Dome, Sil ver, Eureka, Weaver, Chimehuiva, and La Paz min ing districts; and the opening in 1863 of the interior
country (Central Arizona,) have given it an activity
and importance second to that of no portion of the
Territory..x \ its settlements are all upon the
river. La Paz, the chief of these, is a busy commercial town of adobe buildings, with a population about
equally American and Spanish. It has some stores
tlalt would not do discredit to San Francisco, and enjoys a large trade, extending up and down the river
and to Central Arizona.
Castle Dome, Mineral City, and Olive City, all upon the CO)lorad (o, between Fort Yama and La Paz, are
mining towns yet small, but destined to become of
consequence as the depots of mining districts of great
richness, which cannot long remain undeveloped.
The s'lver ores of Yuma County are mostly argentiferous galena. Those of Castle Dome district, 40
miles above Fort Yuma, according to Prof. Blake,
are found in a vein stone of fluor spar.
The same authority reports the copper ores as
nearly all containing silver and gold; some of which
give forty per cent. of copper yield at the rate of
sixty ounces of silver to the ton.
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