2018 Map of San Marcos

About this map

The San Marcos Mountains and Merriam Mountains overlook a rapidly densifying landscape in northern San Diego County. This 2018 survey documents the extensive suburban and educational infrastructure of San Marcos, Vista, and portions of Oceanside and Escondido. The map highlights the concentration of higher education in the area, including the sprawling campus of California State University-San Marcos, Palomar College, and the University of Saint Augustine for Health Sciences. Historically significant traces, such as the San Marcos Cemetery and the path of the San Diego Aqueduct, persist amidst the network of contemporary residential developments and major arterial roads like Borden Road and Buena Creek Road. The drainage patterns of Agua Hedionda Creek and San Marcos Creek illustrate how the modern urban grid has integrated with the natural topography of the foothills and valleys.