Roman Catholic Diocese of Helena was formed to serve eastern Montana. The seat of the diocese is in the Cathedral of St. Helena in the state capital of Helena. It was completed in 1914. The bishops of the Diocese of Helena and their years of service: Roman Catholic Diocese of Helena The Diocese of Helena () is the Catholic diocese for western Montana with its cathedral located in Helena, the state capital. The diocese was erected from the year-old Vicarate of Montana on March 7, 1884, while Montana was still a territory. The diocese is a suffragan of the Archdiocese of Portland, which encompasses Oregon,
Helena, Oklahoma provider, on land owned by brothers Dr. Michael Thorp and Tom Thorp. Oklahoma State University geographer Carlos Cordova, and geography doctoral student Tom Cox excavated the site from September 2013 until October 2013. Oklahoma State University has plans to display the mammoth, which was donated by the Thorp's. Helena is located at (36.546478, -98.270558). According to the United States Census Bureau, the town has a total area of , all of it land. Helena lies along State Highway 58. As of the census of 2000, there were 443 people, 177 households, and 120 families residing in the town. The population