Geologic map of the Pala District, San Diego County, California: Supplement 1 from "The Lithia Pegmatites of Pala and Mesa Grande, San Diego County, California" (Thesis)

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The Mesa Grande and Pala regions, with which this report is chiefly concerned, both lie in the northern part of San Diego County. In an airline Pala is 80 miles southeast of Los Angeles and 45 miles northeast of San Diego. By road these distances are 100 and 55 miles, respectively. Mesa Grande in an airline is 105 miles southeast of Los Angeles and 40 miles northeast of San Diego. Along the most convenient route from Los Angeles to Mesa Grande the distance is 135 miles; from San Diego, 55 miles. Most of the other localities mentioned in this report are in the north-central part of San Diego County; two, Nuevo and Coahuila, are in Riverside County southeast of Riverside. The relative position of these places may be seen in the accompanying map showing the location of the principal pegmatite localities in southern California.

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