1921 Map of Triunfo Pass

About this map

Santa Monica Mountains dominate this coastal survey, where the steep topography of the Malibu shoreline meets the high peaks of Boney Mountain and Sandstone Pk. This 1920s landscape reveals the early transit patterns of coastal Ventura and Los Angeles counties, centered on the historic Triunfo Pass and the isolated settlement of Newbury Park. The map documents a network of canyons that carve through the range toward the Pacific Ocean, including Sycamore Canyon and Zuma Canyon, alongside the inland pastoral expanses of Conejo Valley and Russell Valley. Inland, small hubs like Triunfo and Cornell mark the limited development of the era, while the San Bernardino Base Line provides a fixed surveying reference across the complex terrain. The sharp distinction between the coastal canyons and the northern Simi Hills illustrates the geographic barriers that defined local travel before modern highway expansion.