1942 Map of Hesperia

About this map

The Atchison Topeka and Santa Fe railroad threads through this 1942 survey, marking the transition from the high desert of the Mohave Desert into the mountainous terrain of the San Bernardino National Forest. This era shows a landscape of established ranching and vital infrastructure, where the Boulder Dam Power Lines and California Nevada Power Lines intersect the arid plains near Hesperia. The southern portion of the map is dominated by the steep relief of the San Bernardino Mountains, centered around Cajon Pass and the Cajon Summit Lookout.