evidence: - According to NBC, land that he owns in Washington state is used to grow potatoes that make McDonald's fries. [...] Bill Gates is the largest private farmland owner in the US — and according to a new report from NBC, potatoes that make McDonald's fries grow in his fields. Citing data by The Land Report and its own research, NBC said that potatoes for McDonald's fries are grown in fields in Washington state that are so vast that you can see them from space.