1996 Map of Santa Rosa Mountains SE

About this map

The Tohono O'odham Indian Reservation dominates this landscape in Pima County, where the desert floor meets the rising terrain of the Santa Rosa Mountains. The map documents the sites of Hoi Oidak and Pipyak, marking specific human footprints in a region defined by seasonal water flow and arid basins. These valleys, including the Aguirre Valley and Pipyak Valley, are connected by a network of 4WD tracks that follow the natural contours of the land rather than a formal grid. The drainage of Sil Nakya Wash runs between the Sil Nakya Hills and the Vaca Hills, illustrating how the hydrology of the Sonoran Desert dictates movement and settlement. Small-scale mining activity is evidenced by a prospect in the northwest, while the northern edge touches the Ironwood Forest National Monument, showing the intersection of tribal lands and federal conservation areas in the late 20th century.