Steptoe Butte is a quartzite island jutting out of the silty loess of the Palouse hills in Whitman County, Washington, in the northwest United States.

[2] The east,south and west portions of the butte were purchased in 2016 by two couples Kent and Elaine Bassett, and Ray and Joan Folwell.

The owners planned to protect their 437 acres (177 ha) of land from development, eventually donating it to the state.

[6] This plan came to fruition when they sold the land to the Washington State Department of Natural Resources in December 2021.

[2] Popular activities include sight-seeing, paragliding, hang gliding, kite and model airplane flying, and photography.