The story
Public transportation in Grand Forks was originally provided by the Grand Forks Street Railway Company which operated five street car lines that connected Downtown Grand Forks with the University of North Dakota campus, the Grand Forks County fairgrounds, the neighborhoods of Lincoln Park and Riverside Park, and the community of East Grand Forks, Minnesota. The service completely switched over to buses on July 1, 1934.
From Wikipedia’s article on Cities Area Transit, shared under CC BY-SA 4.0.4