Our Lady of Mercy Catholic Church located in Eureka, Montana, in the Roman Catholic Diocese of Helena, Montana, serves the spiritual and social outreach needs of the Tobacco Valley and the West Kootenai area of the upper Kootenai drainage south of the Canadian border. We embrace all from long time residents to more recently established households to seasonal residents to vacationing residents and visitors. Please join us for all of our regularly scheduled celebrations of God’s word and Sacraments. These services are held either in the Church proper or in St. Patrick’s Chapel located next to the rectory garage that faces 5th Street, at the property located on the South East corner of 1st Avenue East and 5th Street in Eureka. Please see Mass and Sacraments schedule.