The Horse Heaven Hills are a long range of high, rolling hills in Klickitat, Yakima, and Benton counties in Washington. The hills are an anticline ridge in the Yakima Fold Belt formed by north–south compression of lava flows in the Columbia River Basalt Group. The highest point is Bickleton Ridge in the west end of the hills. They lie within the rain shadow to the east of the Cascade Range, making them significantly drier and hotter than regions west of the Cascades.
The Horse Heaven Hills along the Columbia River at Wallula Gap; note the dark areas of extensive flood basalts exposed by erosion.
Looking eastbound on I-82 as it approaches the crest of the Horse Heaven Hills.
A dust storm over the Horse Heaven Hills and Columbia Basin.
A shed near Bickleton
Yakima County, Washington
Yakima County is a county in the U.S. state of Washington. As of the 2020 census, its population was 256,728. The county seat and most populous city is Yakima. The county was formed out of Ferguson County in January 1865 and is named for the Yakama tribe of Native Americans.
Yakima County Courthouse
Orchards near Selah
Mount Adams, highest point in Yakima County
Southeastern Yakima County's vast farmlands
