SIERRA COUNTY (CBS13) – Authorities are warning people to not just blindly follow their GPS when trying to get over the mountains.

The Washoe Sheriff says multiple vehicles are stuck on Henness Pass Road.

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Drivers might be tempted to find another way through the Sierra due to westbound Interstate 80 being closed, but Henness Pass is just not a safe alternative.

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Henness Pass is a mostly unpaved road that is usually unpassable in winter. Even in ideal conditions, four-wheel drive or a high-clearance car are strongly advised to get across the road.

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Westbound I-80 in the Sierra remains closed through the morning due to mudslides, while eastbound has been reopened.