Gilliam County is located in the northeastern part of the state of Oregon, USA. It was established in 1885 and is named after Cornelius Gilliam, a pioneer and politician. The county seat is Condon, which serves as the main hub for local government and services. The area is known for its agricultural activities, particularly wheat farming, and has a population of around 1,000 residents. The county covers approximately 1,900 square miles and features a mix of landscapes, including rolling hills and open plains. It is part of the Columbia River Plateau and offers outdoor recreational opportunities such as hiking and wildlife viewing. Gilliam County is also home to several historical sites and events that celebrate its rich pioneer heritage.