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2014 Map of Las Guijas

Name: 2014 Topographic Map of Las Guijas
Creator: U.S. Geological Survey
Published: 2014
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2014

About this map

Altar Valley dominates this landscape in southern Pima County, where the desert floor is carved by an intricate network of ephemeral drainages. The settlement of Secundino sits near the center of the sheet, positioned along the central Altar Wash, while Las Guijas is located further east at the foot of the Las Guijas Mountains. This 2014 survey reveals a region defined by water management in an arid environment, characterized by numerous small catchment basins such as Tequila Tank, Lindberg Tank, and Boice Tank.

Transport through the valley is facilitated by rural routes like W Arivaca-Sasabe Rd and W Santa Margarita Ranch Rd, which connect the scattered settlements and ranching operations. The terrain transitions from the broad alluvial plains of the valley to the significant elevations of the Guijas range, with major drainage systems like Santa Margarita Wash and Thomas Canyon Wash illustrating the natural flow of the watershed toward the south and west.