State Route 410 over Chinook Pass and SR 123 over Cayuse Pass are beginning to see their first snowfalls of the season. This means WSDOT crews are now closely monitoring pass conditions.When icy roads and avalanche danger make it unsafe for travel, we close both mountain passes for the winter.

Historical opening and closing dates for Chinook and Cayuse passes are available for you history buffs out there.

If you plan to take a trip through this section of Mount Rainier National Park, make sure you stay up to date with the current conditions and come prepared for winter driving.