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1981 Map of Mt. Hopkins
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1981 Map of Mt. Hopkins

USGS Topo · Published 1981

About this map

The Smithsonian Astrophysical Observatory dominates the high-altitude landscape of this 1981 survey, situated atop Mt Hopkins within the Coronado National Forest. This scientific installation, complete with a telescope and heliport, contrasts sharply with the deep-rooted mining history visible across the Santa Rita Mountains. The map documents an extensive network of mineral exploration, ranging from the Eureka Mine and Quantrell Mine in the north to the Bull Springs Mine and Helvetia Mine in the southern reaches. These workings are connected by a web of 4WD tracks and rugged terrain features like the Devils Cash Box. Evidence of ranching and early habitation persists through labels such as Proctor Ranch, while geological landmarks like the Agua Caliente Caves and Elephant Head define the western slopes. The map also captures local water sources essential for desert survival, including Chino Spring and Iron Spring.

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Map Details

Date Portrayed1981
Date Published1981
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.8 inches

Editions of this 1981 Mt. Hopkins Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain