| Chinook Pass | |
|---|---|
 Location of Chinook Pass | |
| Elevation | 5,430 ft (1,655 m) |
| Traversed by | State Route 410 |
| Location | Pierce / Yakima counties, Washington, United States |
| Range | Cascades |
| Coordinates | 46°52′18″N 121°30′56″W / 46.8717°N 121.515483°W |
Chinook Pass (elevation 5430 ft./1656 m.) is a pass through the Cascade Range in the state of Washington.
The pass is located on the crest of the Cascade Range, along a ridge between Yakima Peak to the northwest of the pass, and Naches Peak to the southeast. The boundary between Pierce County, west of the pass, and Yakima County to the east, coincides with the ridge. Terrain immediately west of the pass is in the Cowlitz River watershed. Terrain on the east side drains to the Yakima River watershed.
The pass provides the east entrance to Mount Rainier National Park, and carries State Route 410 between the towns of Enumclaw and Naches. Because of the high elevation, Chinook Pass is usually closed in November due to very heavy snow and significant avalanche danger. It usually opens in mid-May and is not uncommon to have a snow depth at the summit of up to 15 feet.
As part of the All-American Road program, Route 410 through Chinook Pass has been designated by the U.S. government as the Chinook Scenic Byway. It is considered to be one of the most beautiful routes in the United States. Because the summit is above the treeline, there are many places to park along the road to view the scenery. As commercial vehicles are not allowed through the National Park section of State Route 410, this route is also favored by summer tourists.