Guide to San Francisco Bay Area Creeks
Arroyo Las Positas
This map only shows the western portion of this watershed.
Arroyo Las Positas and its major tributaries Cayetano Creek,
Altamont Creek, and Arroyo Seco drain the area to the north and east of Livermore.
Portion of Creek & Watershed Map of the Pleasanton & Dublin Area -- Purchase Printed Map