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1981 Map of Silver Reef Mts.

Name: 1981 Topographic Map of Silver Reef Mts.
Creator: U.S. Geological Survey
Published: 1981
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1981

About this map

The Silver Reef Mountains dominate this landscape within the Papago Indian Reservation, characterized by a complex history of desert mining and indigenous land use. Hard rock mining activity is concentrated in the northern peaks, where operations like the Magnesium Queen Mines, Silver Reef Mine, and Copper Standard Mines are mapped alongside several borrow pits and prospects. These sites cluster near the Shopishk (White Horse Pass), a natural gap that historically served as a critical passage through the desert terrain.

Near the northern boundary, the settlement of Chuichu sits along Alsdorf Road, while the surrounding flats of Shopishk Valley and Tat Momoli Valley are defined by the ephemeral drainage of Greene Wash and Silver Reef Wash. Small-scale cultural markers, including a Cem, Well, and a Shrine near the reservation boundary, provide precise points for genealogists and local historians tracing the development of Pinal County in the late 1970s.