St. Mark's is located in Rosslyn, 5 km from the western limit of the City of Thunder Bay. Sunday services are at 9:30 am from September to June. During the summer, a combined Sunday service is roated between St. Mark's and St. James. The services, employing the Book of Alternative Services and the Book of Common Prayer, are relaxed and involve many parishioners in a number of roles. This congregation likes to sing!