2018 Map of West of Quitobaquito Springs

About this map

The international boundary between the United States of America and Estados Unidos Mexicanos defines the character of this arid landscape in Pima County. Surveyed by the U.S. Geological Survey, the map documents the sparse, wash-dissected terrain where the Sonoran Desert crosses national lines. The topography is dominated by ephemeral drainage patterns flowing south and west across the border, illustrating the natural continuity of the landscape despite political divisions. The grid of the Public Land Survey System is represented by townships including T16s R9w and T17s R9w, providing a framework for the remote ranching and conservation lands in this region. This modern survey captures the environment in its current state, highlighting the intersection of international borders and natural desert geography.