 The Juan Bautista de Anza Trail ascends along the creek from Gate A of the Pearson-Arastradero Preserve, which is accessed from the preserve's interpretive center at 1530 Arastradero Road, 1/4 mile west of Page Mill Road.The willow-lined creek first reaches Sobey Pond, then further downstream it reaches Arastradero Lake, an artificial reservoir formed by an earthen dam that served as a former ranch stock pond.After Arastradero Lake, the Arastradero Creek Trail ascends along the creek to Sobey Pond and then continues upwards almost to the creek's source on the northern edge of Palo Alto's Foothills Park.