OF THE TUCSON AND NOGALES 1° by 2° QUADRANGLES, ARIZONA Edited by Jocelyn A. Peterson Open-File Report...Gray-scale contour maps of element distribution in Arizona, scale 1:3,500,000: 19. Uranium .................and Nogales 1 by 2 quadrangles in south-central Arizona have made important economic contributions to a...of copper, and 10 percent of gold production in Arizona; most of this came from porphyry copper systems...the study area. These include parts of the Tohono O'Odham (formerly Papago), San Carlos, and Maricopa |