Columbia County, Oregon, is located in the northwestern part of the state, bordered by the Columbia River to the north. It was established in 1854 and is known for its scenic landscapes, including forests, rivers, and hills. The county seat is St. Helens, which is named after the nearby Mount St. Helens. The county is home to several parks and recreational areas, making it a popular destination for outdoor activities like hiking, fishing, and boating. Columbia County also has a rich history, with various historical sites and museums that reflect its development over the years.