2012 Map of Jamul Mountains

About this map

Rancho San Diego and the surrounding highlands of the Jamul Mountains appear here during a period of significant suburban expansion in the early 2010s. The landscape is defined by the contrast between dense residential developments like Eastlake Greens and the steep, preserved terrain of San Miguel Mountain and Mother Miguel Mountain. Water management is central to the area's geography, with the Sweetwater River flowing toward the Sweetwater Reservoir and the massive Second San Diego Aqueduct cutting through the valley floor. To the south, the map details the recreation and infrastructure around Lower Otay Lake and the smaller Upper Otay Lake. Smaller settlements and historical landholdings such as Fenton Ranch and Rancho del Otay sit alongside modern aviation at John Nichol's Field Airport.