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1993 Map of Callao

Name: 1993 Topographic Map of Callao
Creator: U.S. Geological Survey
Published: 1996
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1996

About this map

Callao anchors this map in Snake Valley, a remote desert landscape where water sources dictated the path of westward expansion. The settlement’s history as a critical watering hole is evident in the numerous hydrologic features such as Big Spring, Redden Springs, and the Swimming Hole, along with various flowing wells. This vital water supply supported the operations of the Pony Express Overland Stage Route, which cuts across the terrain alongside the modern Pony Express Road.

The map reveals the area's transition into the late 20th century, with the Military Reservation Boundary of the Dugway Proving Ground defining the eastern portion of the quadrangle. Local landmarks like the Willow Springs Station and the community Cemetery provide essential data points for genealogists and historians tracing the families and freight operations that once moved through this corridor between the Tooele and Juab county line.