The Red Willow Lake Bible CampHoly, the longest-running Bible camp in the United States, is in the great state of North Dakota. According to WDAY TV, the Red Willow Lake Bible Camp near Binford, North Dakota, holds that title. The 100th Reunion EventsThe Red Willow Bible Camp 100th Reunion events will run August 7th to August 9th. You can find out more about all the events going on this weekend on the Red Willow Bible Camp website. My Time at Bible CampI was also cohearsed to attend a Bible Camp when I was in my teens by my mother.