Land for sale in Mountrail County recently totaled nearly $5 million and around 1,000 acres. Mountrail County ranks 15th in the Peace Garden State for the total number of acres of land currently advertised for sale. Of all locations in Mountrail County with farms and ranches for sale, Plaza featured the most land for sale. Economically speaking, Mountrail County's is largely dependent on mining and mineral extraction-related businesses and services. Mountrail County is one of the ten biggest counties in North Dakota (1,941 square miles). It's located in the Central North Dakota region of North Dakota.