A Highly Detailed Treatment of North County San Diego From the 1940s
This pair of U.S. Geological Survey topographical maps, titled Rancho Santa Fe Quadrangle and Encinitas Quadrangle, offers a detailed depiction of coastal and inland areas in San Diego County, California.
The maps encompass a broad region, extending northwest to Agua Hedionda Lagoon, covering Batiquitos Lagoon, and stretching southwest to San Elijo Lagoon. The eastern boundaries reach Lake Hodges and Harmony Grove, capturing a diverse mix of coastal, suburban, and rural landscapes.
Key towns and communities featured on these maps include Rancho Santa Fe, Encinitas, Leucadia, and Cardiff, with additional coverage of the Fairbanks Ranch and Olivenhain areas. These maps mark significant geographical and man-made features, including roads, bodies of water, and various elevations. They display the topography with contour lines, offering insight into the area's mountainous terrain, with several unnamed peaks and ridgelines shown.
Natural landmarks, such as lagoons and lakes, add to the environmental detail, reflecting the unique coastal and inland ecosystems.