- Gilliam County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 1,995, making it the third-least populous county in Oregon. The county seat is Condon. The county was established in 1885 and is named for Cornelius Gilliam, a colonel who commanded the forces of the provisional government of Oregon after the Whitman Massacre.
- Cleveland Shrub Steppe Natural Area Preserve (dnr.wa.gov)
This preserve includes high-quality examples of native shrub-grassland ecosystems, known as shrub-steppe, that were once abundant in central and eastern Washington. Located along the margin of the Columbia Basin and eastern Cascades, this 640 acre site also includes woodlands with Oregon white oak, aspen, juniper and ponderosa pine, as well as a spring and stream that provide habitat for an array of wildlife species.