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1970 Map of Boundary Cone, 1986 Print
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1970 Map of Boundary Cone

USGS Topo · Published 1986

About this map

Boundary Cone rises as a prominent landmark in the Black Mountains of Mohave County, serving as the focal point for an area defined by its late-century mining activity. This 1970 survey records a landscape etched with the legacy of resource extraction, where numerous claims such as the United Oatman Mine, Alcyone Mine, and Black Range Mine are connected by a network of Jeep Trails. The concentration of these sites around the foothills of Wrigley Peak and McHeffy Butte illustrates the intense geological interest in the region. Beyond the shafts and tunnels of the Oatman Southern Mine and Adams Mine, the map documents modern infrastructure developments, including a prominent Pipeline and a Borrow Pit north of the volcanic heights.

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Map Details

Date Portrayed1970
Date Published1986
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24000
Physical Dimensions21.5 x 26.7 inches

Editions of this 1970 Boundary Cone Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain