2018 Map of Altamont

About this map

Altamont Pass serves as the gateway between the coastal ranges and the Central Valley, a gap that has historically dictated the flow of transport and energy across California. This survey of the eastern Livermore Valley illustrates a landscape transitioning from the suburban expansion of Trevarno and Ulmar into the steep, rolling terrain of the Diablo Range. The critical infrastructure of the S Bay Aqueduct and Altamont Pass Rd snakes through the hills, following the natural contours that have guided travelers since the pioneer era. To the south, the open space of Meadowlark Field and the elevations of Crane Ridge overlook the winding drainage of Arroyo Mocho, while seasonal features like Frick Lake and Patterson Reservoir mark the local hydrology of this rain-shadowed region.