When was the county, where Shelby Airport is located, established ?
Toole County, Montana Toole County is a county located in the northern portion of the U.S. state of Montana. As of the 2010 census, the population was 5,324. Its county seat is Shelby. The county was established in 1914 from parts of Hill County and Teton County and was named after Joseph Toole, the first and fourth governor of Montana. Its northern boundary is the Canada–United States border south of Alberta.
Columbia County, Washington Columbia County is a county located in the U.S. state of Washington. As of the 2010 census, the population was 4,078, making it the third-least populous county in Washington. The county seat and largest city is Dayton. The county was created out of Walla Walla County on November 11, 1875 and is named after the Columbia River.