The Santa Susana Pass is a low mountain pass in the Simi Hills of Southern California, connecting San Fernando Valley to Simi Valley. It was used by Native American tribes for around 8,000 years. Use by Europeans started with the Portola Expedition (1769-1770), by Franciscans to travel from the San Fernando Mission the San Buenaventura, and by San Fernando rancheros after 1834 secularization. A wagon trail was created, and, in 1917, a road was built. View of the east side of the Santa Susana Pass around 1895.
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