Identifier: bwhisofnwcoast27bancroft (find matches)
Title: Bancroft's Works History of the Northwest Coast vol 1
Year: 1884 (1880s)
Authors: Bancroft, Hubert Howe
Subjects: history
Publisher: San Francisco, A. L. Bancroft and Company
Contributing Library: Brigham Young University-Idaho, David O. McKay Library
Digitizing Sponsor: Brigham Young University-Idaho

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ghlands of the plateau, by way of contrast to theculminating range, the dried-up lake bottom ofthe Amargosa, below the sea-level. The Gila andthe Santiago, in Mexico, are the only streams on theSpanish Pacific side that cut through the flange underconditions furnishing material advantages for commu-nication; the Zacatula Pass above Acapulco being,like that of the Colorado, in a rugged mountainousregion. By the valleys of the Gila and of the San-tiago natural roadways were found, practicable forwagons, along which flowed the principal currents ofpopulation and trade eastward and westward betweenthe region or valley of the gulf and the plateau inArizona and Mexico; Tucson and Yuma, San Biasand Mazatlan being the historical consequences. In Mexico there are, of course, many other passesor trails through the western flange which were moreor less travelled. The most northerly of these was ofimportance to New Mexico. A branch of the Gila IIist. N. W. Coast, Vol. I. 42 653 PASSES AND ROUTES.
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mrnwm Passes of Mexico and Central America. ACROSS MEXICO. 659 overland mail and emigrant road leads south from theGila or Mimbres Pass, near Mowry City, through theplateau Salt Lake basins, by Cooks route in 1854, tothe Mexican boundary at the Guadalupe Mountains ofthe Pinal Range or Sierra Madre and to the sourcesof the Yaqui River, crossing the mountains near theboundary line, in latitude 31° 30;, and descending theYaqui to the towns of Arispe, Ures, and Hermosillo,thence continuing in the same southerly course toGuaymas. It would appear that the importance ofthese towns was due very largely to their position onthe route from the plateau in New Mexico to thePacific sea-coast, being situated on the shortest routefrom the upper Rio Grande Valley to either sea. Pertaining to the western slope of the flange in So-nera, the Altar and Sonora Rivers within the CoastRange at the head of the gulf of California affordedvalleys not unlike the coast valleys of California, bywhich north-wester

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