1972 Map of Morongo Valley

About this map

Little Morongo Valley serves as a critical desert corridor in this early 1970s survey, where the Twentynine Palms Highway bisects a landscape defined by seasonal washes and steep canyon walls. The settlement of Morongo Valley is the primary hub, anchored by the Morongo Valley Sch and Covington Park, while the more elevated Little Morongo Heights overlooks the basin from the northeast. The map illustrates a transitional environment where desert ranching at Pierce Ranch and T Cross K Ranch meets modern infrastructure, most notably the subterranean path of the Colorado River Aqueduct and various pipelines. Arid geography is punctuated by vital water sources like Little Morongo Springs and Leopard Spring, highlighting the reliance on natural seeps before the area's further residential expansion. The high peaks of the San Bernardino Mts dominate the southern portion, dropping sharply toward the Coachella Valley floor.