1969 Map of San Ysidro

About this map

San Ysidro sits at the confluence of the Jemez River and the Rio Salado, serving as a central point where the Jemez Indian Reservation and Zia Indian Reservation meet. The 1969 landscape is defined by its deep arroyos and dramatic mesas, such as White Mesa and Sierra Nacimiento. An Old Railroad Grade follows the southern bank of the Rio Salado, tracing a path through the Espiritu Santo Grant. This survey records a transition from the river valley to the high country, marked by numerous water sources like Blue Water Spring and Salt Spring, alongside small infrastructure like a Water Tank and Substa. To the south, Zia Reservoir and several scattered Ruins indicate the long-standing human interaction with this arid terrain, while a solitary Mine on the slope of White Mesa hints at the area's mineral interests.