Interstate 90 on the east side of the Cascade Range.
eastbound on Interstate 90
- Ellensburg, Washington (Wikipedia)
Ellensburg is a city in and the county seat of Kittitas County, Washington, United States. It is located just east of the Cascade Range near the junction of Interstate 90 and Interstate 82. The population was 18,666 at the 2020 census. and was estimated to be 19,596 in 2021.