1. Mortenson & Rygh 324 9th Ave, Langdon, ND 58249 Coordinate: 48.761,-98.36941 Phone: (701) 256-2427
2. Jason Sillers CPA 716 3rd St, Langdon, ND 58249 Coordinate: 48.75978,-98.36843 Phone: (701) 256-2101