Seasonal route: The road is subject to closure in winter. The Sonora Pass Highway—SR 108 between Sonora and US 395—crosses the Sierras through Stanislaus National Forest's aspen and pine woods. At 9,624 feet, Sonora Pass is one of California's highest mountain passes. This two-lane asphalt road, a beautiful mountain drive, is normally closed from early November to mid-May.
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From Sonora, SR 108 winds across the Sierras against a backdrop of rocky cliffs, giant boulders, and vast forests of pine and aspen. It winds sharply over 9,624-foot Sonora Pass, but from the vantage point of Vista Point the views of the rocky peaks that make up the Carson-Iceberg Wilderness are worth the effort.