Oliver Anderson, a resident of rural Stanchfield, Minnesota and a patron of the East Central Regional Library receives his Mail-a-Book delivery. Founded in 1959, ECRL is the oldest existing regional public library system in Minnesota. Headquartered in Cambridge, it is a consolidated library system with 14 libraries and Outreach Services and serves residents in Aitkin, Chisago, Isanti, Kanabec, Mille Lacs, and Pine counties.